What is CVE-2026-33328?

CVE-2026-33328 is a medium-severity vulnerability in Libvips, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2026-07-20.

How severe is CVE-2026-33328?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Integer overflow in Libvips

CVE-2026-33328

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.

Vulnerability class: Integer Overflow

EPSS: 0.001 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libvips — versions <= 8.18.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33328?: CVE-2026-33328 is a medium-severity vulnerability in Libvips, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2026-07-20.
How severe is CVE-2026-33328?: Medium severity. CVSS v3 base score is 5.5 out of 10.