CVE-2026-89156
MEDIUMCVSS 5.9/10EPSS 0.10%
Last modified
CVE-2026-89156 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.. EPSS estimates a 0.10% chance of exploitation in the next 30 days.
Description
PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Pcre | Pcre2 | < 10.48 | — |
| Pcre | Pcre2 | 10.48 | Rc1 |
References
- https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-2p8c-ff85-vh9xExploit, Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-89156?
PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.
How severe is CVE-2026-89156?
CVE-2026-89156 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89156?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-89146libp2p-rendezvous through 0.17.1 fails to validate registrat…7.5
- CVE-2026-89147Net-SNMP through 5.9.5.2 contains a denial of service vulner…7.5
- CVE-2026-89148AVideo through commit c3edcc274c389816d434acadac07ee78eaf330…5.4
- CVE-2026-8915Out-of-bounds write vulnerability in Samsung Open Source Esc…8.8
- CVE-2026-89151Forgejo before 16.0.4 allows use of restricted API tokens fo…3.5
- CVE-2026-89155Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-89157PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern…7.4
- CVE-2026-89158PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile…6.5
- CVE-2026-8916Out-of-bounds write vulnerability in Samsung Open Source rlo…6.1
- CVE-2026-89160PCRE2 before 10.48 has a pcre2_match out-of-bounds read duri…6.5
- CVE-2026-89161In PCRE2 before 10.48, pcre2_jit_match mishandles a previous…7.8
- CVE-2026-89162In PCRE2 before 10.48, pcre2_serialize_encode might disclose…3.3
Are you affected by CVE-2026-89156?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST