CVE-2026-89156

Publication date 11 September 2026

Last updated 3 November 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

2.9 · Low

Score breakdown

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.

Status

Package Ubuntu Release Status
pcre2 26.10 stonking
Fixed in 10.46-1ubuntu1
26.04 LTS resolute
Fixed in 10.46-1ubuntu0.1
24.04 LTS noble
Fixed in 10.42-4ubuntu2.2
22.04 LTS jammy
Fixed in 10.39-3ubuntu0.2
20.04 LTS focal
Fixed in 10.34-7ubuntu0.1+esm1
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
pcre2

Severity score breakdown

CVSS version: CVSS v3.0

Base score 2.9 · Low

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

    • USN-8974-1
    • PCRE2 vulnerabilities
    • 3 November 2026

Other references

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