HIGH 7.4 Microsoft
CVE-2026-89161
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.
Microsoft Security Update 2026-Sep: 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.
Affected Products
- azl3 rust 1.75.0-31 on Azure Linux 3.0
- azl3 php 8.3.33-1 on Azure Linux 3.0
- azl3 qtbase 6.6.3-5 on Azure Linux 3.0
- azl3 rust 1.96.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-89161
- https://nvd.nist.gov/vuln/detail/CVE-2026-89161
This high severity vulnerability with a CVSS score of 7.4 was published on 2026-09-08 via Microsoft. Affected: azl3 rust 1.75.0-31 on Azure Linux 3.0, azl3 php 8.3.33-1 on Azure Linux 3.0, azl3 qtbase 6.6.3-5 on Azure Linux 3.0 and 1 more.
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