CVE-2026-89161

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 11, 2026
Patch available. Sources: github_pr, github_release.
github_release Patch Available

PCRE2 10.48

Patch available: PCRE2Project/pcre2 pcre2-10.48

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

Fix leak & stale PCRE2_MD_COPIED_SUBJECT if pcre2_jit_match used with existing match context

Fix merged in PCRE2Project/pcre2 PR #937 on 2026-08-08 — awaiting tagged release

https://github.com/PCRE2Project/pcre2/pull/937

Vendor Advisories for CVE-2026-89161(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.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 39× in last 7d / 50× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-09-18 23:55 UTCEG score recompute
  2. 2026-09-18 23:55 UTCVendor advisory
  3. 2026-09-18 23:55 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 10:45 UTCVendor advisory
  6. 2026-09-18 10:45 UTCGHSA enrichment
  7. 2026-09-17 21:35 UTCEG score recompute
  8. 2026-09-17 21:35 UTCVendor advisory
  9. 2026-09-17 21:35 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-17 08:24 UTCVendor advisory
  12. 2026-09-17 08:24 UTCGHSA enrichment
  13. 2026-09-16 19:12 UTCEG score recompute▲ 0.40
  14. 2026-09-16 19:12 UTCVendor advisory
  15. 2026-09-16 19:12 UTCGHSA enrichment
  16. 2026-09-16 19:11 UTCNVD updateCVSS v3 → 7.8
  17. 2026-09-16 14:09 UTCEPSS rescore
  18. 2026-09-16 06:09 UTCEG score recompute
  19. 2026-09-16 06:09 UTCVendor advisory
  20. 2026-09-16 06:09 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 16:59 UTCVendor advisory
  23. 2026-09-15 16:59 UTCGHSA enrichment
  24. 2026-09-15 03:48 UTCEG score recompute
  25. 2026-09-15 03:48 UTCVendor advisory
Show 25 more
  1. 2026-09-15 03:48 UTCGHSA enrichment
  2. 2026-09-15 03:12 UTCEPSS rescore
  3. 2026-09-14 14:38 UTCVendor advisory
  4. 2026-09-14 14:38 UTCGHSA enrichment
  5. 2026-09-14 01:27 UTCEG score recompute
  6. 2026-09-14 01:27 UTCVendor advisory
  7. 2026-09-14 01:27 UTCGHSA enrichment
  8. 2026-09-13 16:48 UTCEPSS rescore
  9. 2026-09-13 12:17 UTCVendor advisory
  10. 2026-09-13 12:17 UTCGHSA enrichment
  11. 2026-09-12 23:07 UTCEG score recompute
  12. 2026-09-12 23:07 UTCGHSA enrichment
  13. 2026-09-12 15:02 UTCEPSS rescore
  14. 2026-09-12 09:57 UTCGHSA enrichment
  15. 2026-09-11 20:46 UTCEG score recompute
  16. 2026-09-11 20:46 UTCGHSA enrichment
  17. 2026-09-11 20:14 UTCEG score recompute
  18. 2026-09-11 20:14 UTCGHSA enrichment
  19. 2026-09-11 15:07 UTCEG score recompute
  20. 2026-09-11 15:07 UTCGHSA enrichment
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 04:20 UTCEG score recompute
  24. 2026-09-11 04:15 UTCEG score recompute
  25. 2026-09-11 04:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-89161?
CVE-2026-89161 is a high vulnerability published on September 11, 2026. In PCRE2 before 10.48, pcre2jitmatch mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.
When was CVE-2026-89161 disclosed?
CVE-2026-89161 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-89161 actively exploited?
CVE-2026-89161 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.0% of all scored CVEs.
What is the CVSS score of CVE-2026-89161?
CVE-2026-89161 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-89161?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-89161, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-89161

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