In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
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Score 6.9 from GitHub Security Advisory published 2026-01-30. NVD baseline CVSS 6.9; sources differ by 0.0.
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.
January 30, 2026
March 10, 2026
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libexpat1-dev (2.6.1-2ubuntu0.4) @ noble | 2026-05-29 | ubuntu |
| ubuntu | libxmltok1-dev (1.2-3ubuntu0.16.04.1~esm5) @ xenial | 2026-05-29 | ubuntu |
| ubuntu | libexpat1-dev (2.1.0-7ubuntu0.16.04.5+esm11) @ xenial | 2026-05-29 | ubuntu |
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