CVE-2026-71964

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-10. A secondary CVSS source baseline 6.5; 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 weekElevated

Also known asEUVD-2026-55734 (ENISA EUVD) · GHSA-vq2q-3r2q-4h83 (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

CyberPanel 2.4.3, fixed in commit eca0c3c, contains an arbitrary file read vulnerability in the file manager component that allows authenticated attackers to read sensitive system files by uploading a crafted ZIP archive containing symbolic links. Attackers can exploit the application's failure to validate symlinks before extraction, causing symbolic links targeting arbitrary filesystem paths outside the user's home directory to persist on disk and be accessed through the web interface.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.
EPSS PROB
0.5%
EPSS %ILE
40th
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 (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-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 2026-10-29). 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: 60 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).

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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 10, 2026

Last Modified

October 24, 2026

Advisory Details (3)

Auto-updated Aug 10, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

CyberPanel 2.4.3 Arbitrary File Read via File Manager ZIP Upload | Advisories | VulnCheck

https://www.vulncheck.com/advisories/cyberpanel-arbitrary-file-read-via-file-manager-zip-upload
GitHub commit

commit eca0c3cbeb35 (usmannasir/cyberpanel)

Fix landed in usmannasir/cyberpanel commit eca0c3cbeb35 — awaiting tagged release

https://github.com/usmannasir/cyberpanel/commit/eca0c3cbeb35af8eaae9fafb094e8ef3cd923643
Web page

Authenticated RCE and File Read Vulnerabilities Found in CyberPanel | McSam's blog

https://themcsam.github.io/posts/cyberpanel-2.4.3-vulnerabilties/

Vendor Advisories for CVE-2026-71964(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 / 49× 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 181 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 81 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-10-29 16:58 UTCEG score recompute
  6. 2026-10-29 16:58 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  7. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  8. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  11. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  12. 2026-10-25 14:07 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-10-24 15:29 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  15. 2026-10-23 19:33 UTCEG score recompute
  16. 2026-10-23 19:33 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  17. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  18. 2026-10-22 19:23 UTCEG score recompute
  19. 2026-10-22 19:23 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  20. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  25. 2026-10-18 03:16 UTCEG score recompute
Show 75 more
  1. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  3. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  4. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-12 15:42 UTCEG score recompute
  8. 2026-10-11 19:28 UTCEG score recompute
  9. 2026-10-11 16:43 UTCEG score recompute
  10. 2026-10-11 14:03 UTCEG score recompute
  11. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  14. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-10-06 18:20 UTCEG score recompute
  17. 2026-10-06 18:20 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-10-05 07:45 UTCEG score recompute
  21. 2026-10-05 07:45 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-10-04 04:18 UTCEG score recompute
  24. 2026-10-04 04:18 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  25. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  26. 2026-10-02 09:18 UTCEG score recompute
  27. 2026-10-02 09:18 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  28. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  29. 2026-09-30 22:25 UTCEG score recompute
  30. 2026-09-30 22:25 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  31. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  32. 2026-09-29 05:21 UTCEG score recompute
  33. 2026-09-29 05:21 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  34. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  35. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  36. 2026-09-27 12:35 UTCEG score recompute
  37. 2026-09-27 12:35 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  38. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  39. 2026-09-25 04:00 UTCEG score recompute
  40. 2026-09-25 04:00 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  41. 2026-09-23 21:10 UTCEG score recompute
  42. 2026-09-23 21:10 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  43. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  44. 2026-09-22 14:57 UTCEG score recompute
  45. 2026-09-22 14:57 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  46. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  47. 2026-09-21 12:42 UTCEG score recompute
  48. 2026-09-21 12:42 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  49. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  50. 2026-09-20 10:28 UTCEG score recompute
  51. 2026-09-20 10:28 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  52. 2026-09-19 05:13 UTCEG score recompute
  53. 2026-09-19 05:13 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  54. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  55. 2026-09-18 02:57 UTCEG score recompute
  56. 2026-09-18 02:57 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  57. 2026-09-17 00:42 UTCEG score recompute
  58. 2026-09-17 00:42 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  59. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  60. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  61. 2026-09-15 13:44 UTCEG score recompute
  62. 2026-09-15 13:44 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  63. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  64. 2026-09-14 10:58 UTCEG score recompute
  65. 2026-09-14 10:58 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  66. 2026-09-13 08:44 UTCEG score recompute
  67. 2026-09-13 08:44 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  68. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  69. 2026-09-12 06:29 UTCEG score recompute
  70. 2026-09-12 06:29 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  71. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  72. 2026-09-11 04:14 UTCEG score recompute
  73. 2026-09-11 04:14 UTCGHSA enrichmentGHSA-vq2q-3r2q-4h83 · GitHub severity HIGH · GitHub CVSS 6.5
  74. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  75. 2026-09-10 01:59 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-71964?
CVE-2026-71964 is a medium-severity vulnerability; its CVE record was published on August 10, 2026. CyberPanel 2.4.3, fixed in commit eca0c3c, contains an arbitrary file read vulnerability in the file manager component that allows authenticated attackers to read sensitive system files by uploading a crafted ZIP archive containing symbolic links. Attackers can exploit the application's failure to…
When was CVE-2026-71964 made public?
CVE-2026-71964 was made public on December 18, 2025: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 10, 2026. EchelonGraph's copy of the record carries a last-modified date of October 24, 2026; the record at its source may have been updated since.
Is CVE-2026-71964 actively exploited?
CVE-2026-71964 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71964?
CVE-2026-71964 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71964?
An upstream fix for CVE-2026-71964 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-71964 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-71964

Explore →

Is Your Infrastructure Affected by CVE-2026-71964?

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