Vulnerability · Published Jul 20, 2026 · Assigned by GitHub_M
CVE-2026-33328Possible integer overflow on 32-bit systems when reading GIF images
Medium 6.8
In plain English
A medium-severity integer overflow in libvips from libvips. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)6.8Medium
Exploit odds (30 days)0.1%top 96.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
libvips is a fast image processing library with low memory needs. On 32-bit systems in versions before and including 8.18.0, the `gifload` operation could incorrectly determine dimensions leading to an integer overflow. This has been patched in version 8.18.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | vips | no fix listed | DEBIAN-CVE-2026-33328 |
| Debian:13 | vips | 8.16.1-1+deb13u2 | DEBIAN-CVE-2026-33328 |
| Debian:14 | vips | 8.18.1-1 | DEBIAN-CVE-2026-33328 |
Affected products (as reported)
Weakness: CWE-190 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References
- https://github.com/libvips/libvips/security/advisories/GHSA-r98w-4fp7-m9c7 x_refsource_CONFIRM
- https://github.com/libvips/libvips/pull/4935 x_refsource_MISC
- https://github.com/libvips/libvips/commit/9b633e45abfcf1fc4c84847007c81805193c0969 x_refsource_MISC