CVE-2026-59335

HIGHPre-NVD 8.78.7
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.7 from GitHub Security Advisory (severity: HIGH) published 2026-08-25. A secondary CVSS source baseline 8.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-65466 (ENISA EUVD) · GHSA-m647-7qf2-2rmg (GitHub Security Advisories)Source: ENISA EUVD

8.7EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.7Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (VMware by Broadcom) lists Cloud Foundry UAA versions before 78.16.0; Cloud Foundry cf-deployment versions before 57.0.0 as affected, and Cloud Foundry UAA versions 78.16.0; Cloud Foundry cf-deployment versions 57.0.0 as unaffected. No release containing a fix is confirmed on record.

Improper handling of case sensitivity (CWE-178) in the identity zone authorization check in the Identity Zone Endpoint in Cloud Foundry UAA allows a remote authenticated attacker holding only the zones.write authority to bypass the intended restriction that this authority does not grant access to the privileged uaa (system) identity zone, by referring to the zone identifier in a non-lowercase form (e.g. UAA) in the request path and body. The authorization layer performs a case-sensitive comparison against the system zone identifier, while the underlying MySQL persistence layer resolves identifiers case-insensitively under its default collation, so the request is authorized incorrectly and is then resolved against the real system zone record. This allows the attacker to overwrite the system zone's JWT signing key with attacker-controlled key material, forge JWTs claiming the admin client and administrator scopes, and fully compromise UAA and any Cloud Foundry deployment that trusts it. This issue only affects UAA deployments backed by MySQL using its default collation; PostgreSQL and HSQLDB backends are not affected.

CVSS v3
8.7
EG Score
8.7HIGHmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity87% × 45%
Impact severity (EG Severity): CVSS 8.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.5%
EPSS %ILE
44th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.7): severity, escalated by confirmed exploitation. This CVE's 8.7 is its impact severity (EG Severity), not escalated.

EG Severity
8.7 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 25, 2026

Last Modified

September 28, 2026

Advisory Details (1)

Auto-updated Aug 25, 2026
No fix on record yet.
Web page

CVE-2026-59335 - UAA case insensitive check bypass | Cloud Foundry

https://www.cloudfoundry.org/blog/cve-2026-59335-uaa-case-insensitive-check-bypass/

Vendor Advisories for CVE-2026-59335(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 60× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 205 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 105 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  3. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  5. 2026-10-29 03:51 UTCEG score recompute
  6. 2026-10-29 03:51 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  7. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-10-25 14:16 UTCEG score recompute
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  14. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  16. 2026-10-21 07:16 UTCEG score recompute
  17. 2026-10-21 07:15 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-10-18 03:27 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  23. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
Show 75 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-10-13 16:00 UTCEG score recompute
  3. 2026-10-13 16:00 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-12 15:52 UTCEG score recompute
  6. 2026-10-11 19:36 UTCEG score recompute
  7. 2026-10-11 16:51 UTCEG score recompute
  8. 2026-10-11 14:14 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-10 12:17 UTCEG score recompute
  12. 2026-10-10 12:17 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-09 04:31 UTCEG score recompute
  15. 2026-10-09 04:31 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  17. 2026-10-08 03:34 UTCEG score recompute
  18. 2026-10-08 03:33 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-10-07 09:56 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  21. 2026-10-06 21:15 UTCEG score recompute
  22. 2026-10-06 21:14 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  23. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-10-06 08:48 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  25. 2026-10-05 20:32 UTCEG score recompute
  26. 2026-10-05 20:32 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  27. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  28. 2026-10-05 08:07 UTCEG score recompute
  29. 2026-10-05 08:07 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  30. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  31. 2026-10-04 19:51 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  32. 2026-10-04 04:44 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  33. 2026-10-03 16:27 UTCEG score recompute
  34. 2026-10-03 16:27 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  35. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  36. 2026-10-02 21:33 UTCEG score recompute
  37. 2026-10-02 21:33 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  38. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  39. 2026-10-02 09:13 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  40. 2026-10-01 20:58 UTCEG score recompute
  41. 2026-10-01 20:58 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  42. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  43. 2026-10-01 08:35 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  44. 2026-09-30 20:16 UTCEG score recompute
  45. 2026-09-30 20:16 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  46. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  47. 2026-09-30 06:51 UTCEG score recompute
  48. 2026-09-30 06:51 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  49. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  50. 2026-09-29 14:38 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  51. 2026-09-28 23:16 UTCEG score recompute
  52. 2026-09-28 23:16 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  53. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  54. 2026-09-28 11:30 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  55. 2026-09-27 23:14 UTCEG score recompute
  56. 2026-09-27 23:14 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  57. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  58. 2026-09-27 10:58 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  59. 2026-09-26 22:08 UTCEG score recompute
  60. 2026-09-26 22:08 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  61. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  62. 2026-09-25 14:40 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  63. 2026-09-25 01:46 UTCEG score recompute
  64. 2026-09-25 01:46 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  65. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  66. 2026-09-24 13:29 UTCEG score recompute
  67. 2026-09-24 13:28 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  68. 2026-09-24 01:09 UTCEG score recompute
  69. 2026-09-24 01:08 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  70. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  71. 2026-09-23 12:52 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  72. 2026-09-23 00:36 UTCEG score recompute
  73. 2026-09-23 00:36 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  74. 2026-09-22 12:21 UTCGHSA enrichmentGHSA-m647-7qf2-2rmg · GitHub severity HIGH · GitHub CVSS 8.7
  75. 2026-09-22 00:05 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-59335?
CVE-2026-59335 is a high-severity vulnerability; its CVE record was published on August 25, 2026. Improper handling of case sensitivity (CWE-178) in the identity zone authorization check in the Identity Zone Endpoint in Cloud Foundry UAA allows a remote authenticated attacker holding only the zones.write authority to bypass the intended restriction that this authority does not grant access to…
When was the CVE record for CVE-2026-59335 published?
The CVE record for CVE-2026-59335 was published on August 25, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 28, 2026; the record at its source may have been updated since.
Is CVE-2026-59335 actively exploited?
CVE-2026-59335 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59335?
CVE-2026-59335 has a CVSS base score of 8.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-59335?
No fix for CVE-2026-59335 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VMware by Broadcom) lists Cloud Foundry UAA versions before 78.16.0; Cloud Foundry cf-deployment versions before 57.0.0 as affected, and Cloud Foundry UAA versions 78.16.0; Cloud Foundry cf-deployment versions 57.0.0 as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-59335 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-59335

Explore →

Is Your Infrastructure Affected by CVE-2026-59335?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.