CVE-2026-89160

MEDIUMNVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (18th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 3.7 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-09-11) is not newer than that change (2026-09-16), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2026-75945 (ENISA EUVD) · GHSA-cv45-8fc2-7w58 (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (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: 0.3%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.

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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
18th
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.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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.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).

A fix is available. Apply it within your standard update timelines.

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.

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

September 11, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

PCRE2: out-of-bounds reads in pcre2_match() when matching invalid UTF subjects with PCRE2_MATCH_INVALID_UTF · Advisory · PCRE2Project/pcre2 · GitHub

Affected: 10.48

https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-9qww-pwc4-77qq
GitHub release Patch Available

PCRE2 10.48

Patch available: PCRE2Project/pcre2 pcre2-10.48

https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48

Vendor Advisories for CVE-2026-89160(7)

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

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatcostmanagement/costmanagement-ui-rhel10:17926052722026-10-21redhat
redhatrhui5/rhua-rhel9:17919786932026-10-14redhat
redhatpcre2-0:10.44-1.5.el10_22026-10-12redhat
redhatpcre2-0:10.40-7.el9_82026-10-12redhat
redhatpcre2-main-10.48-0.1.hum12026-09-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
pcre2—
  • 10.34 up to 10.48-r0: fixed in 10.48-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
pcre2—
  • 10.34 up to 10.48-r0: fixed in 10.48-r0
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
pcre210.42-1
  • every version up to 10.42-1+deb12u1: fixed in 10.42-1+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
pcre210.45-1, 10.46-1~deb13u1
  • every version up to 10.46-1~deb13u2: fixed in 10.46-1~deb13u2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
pcre210.45-1 ... 10.47-2 (7 versions)
  • every version up to 10.48-1: fixed in 10.48-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 65× 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 152 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 52 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  4. 2026-10-29 22:25 UTCOSV refresh
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  8. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-25 13:53 UTCEG score recompute
  11. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  14. 2026-10-22 12:32 UTCEG score recompute
  15. 2026-10-22 12:32 UTCVendor advisory
  16. 2026-10-22 12:32 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  17. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-10-18 03:02 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  23. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  24. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  25. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
Show 75 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-12 14:49 UTCEG score recompute
  4. 2026-10-11 19:15 UTCEG score recompute
  5. 2026-10-11 16:32 UTCEG score recompute
  6. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  7. 2026-10-11 13:48 UTCEG score recompute
  8. 2026-10-11 06:59 UTCEG score recompute
  9. 2026-10-11 06:59 UTCVendor advisory
  10. 2026-10-11 06:59 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  11. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-10 03:29 UTCEG score recompute
  13. 2026-10-10 03:29 UTCVendor advisory
  14. 2026-10-10 03:28 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  16. 2026-10-09 05:42 UTCEG score recompute
  17. 2026-10-09 05:42 UTCVendor advisory
  18. 2026-10-09 05:42 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  19. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  20. 2026-10-08 07:54 UTCEG score recompute
  21. 2026-10-08 07:54 UTCVendor advisory
  22. 2026-10-08 07:54 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  23. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  24. 2026-10-07 10:03 UTCEG score recompute
  25. 2026-10-07 10:03 UTCVendor advisory
  26. 2026-10-07 10:03 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  27. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  28. 2026-10-06 12:16 UTCEG score recompute
  29. 2026-10-06 12:16 UTCVendor advisory
  30. 2026-10-06 12:16 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  31. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  32. 2026-10-05 14:29 UTCEG score recompute
  33. 2026-10-05 14:29 UTCVendor advisory
  34. 2026-10-05 14:29 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  35. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  36. 2026-10-04 16:43 UTCVendor advisory
  37. 2026-10-04 16:43 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  38. 2026-10-03 18:57 UTCEG score recompute
  39. 2026-10-03 18:57 UTCVendor advisory
  40. 2026-10-03 18:56 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  41. 2026-10-02 20:49 UTCEG score recompute
  42. 2026-10-02 20:49 UTCVendor advisory
  43. 2026-10-02 20:49 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  44. 2026-10-01 22:36 UTCEG score recompute
  45. 2026-10-01 22:36 UTCVendor advisory
  46. 2026-10-01 22:36 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  47. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  48. 2026-10-01 00:48 UTCEG score recompute
  49. 2026-10-01 00:48 UTCVendor advisory
  50. 2026-10-01 00:48 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  51. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  52. 2026-09-30 01:51 UTCEG score recompute
  53. 2026-09-30 01:51 UTCVendor advisory
  54. 2026-09-30 01:51 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  55. 2026-09-28 20:20 UTCEG score recompute
  56. 2026-09-28 20:20 UTCVendor advisory
  57. 2026-09-28 20:20 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  58. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  59. 2026-09-27 21:24 UTCEG score recompute
  60. 2026-09-27 21:24 UTCVendor advisory
  61. 2026-09-27 21:24 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  62. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  63. 2026-09-26 23:38 UTCEG score recompute
  64. 2026-09-26 23:38 UTCVendor advisory
  65. 2026-09-26 23:38 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  66. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  67. 2026-09-26 01:24 UTCEG score recompute
  68. 2026-09-26 01:24 UTCVendor advisory
  69. 2026-09-26 01:24 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  70. 2026-09-25 02:31 UTCEG score recompute
  71. 2026-09-25 02:31 UTCVendor advisory
  72. 2026-09-25 02:31 UTCGHSA enrichmentGHSA-cv45-8fc2-7w58 · GitHub severity LOW · GitHub CVSS 3.7
  73. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  74. 2026-09-24 04:44 UTCEG score recompute
  75. 2026-09-24 04:44 UTCVendor advisory

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-89160?
CVE-2026-89160 is a medium-severity vulnerability; its CVE record was published on September 11, 2026. PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.
When was the CVE record for CVE-2026-89160 published?
The CVE record for CVE-2026-89160 was published on September 11, 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 16, 2026; the record at its source may have been updated since.
Is CVE-2026-89160 actively exploited?
CVE-2026-89160 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89160?
CVE-2026-89160 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-89160?
A fix for CVE-2026-89160 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-89160 are linked in the Vendor Advisories panel on this page.

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