CVE-2025-59933 libvips is vulnerable to Buffer Over-Read in poppler-based pdfload
A buffer over-read in libvips allows attackers to cause denial of service or disclose information via crafted PDFs when poppler support is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-59933?
CVE-2025-59933 is a medium-severity memory corruption vulnerability in libvips, published on 29 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
libvips is a demand-driven, horizontally threaded image processing library. For versions 8.17.1 and below, when libvips is compiled with support for PDF input via poppler, the pdfload operation is affected by a buffer read overflow when parsing the header of a crafted PDF with a page that defines a width but not a height. Those using libvips compiled without support for PDF input are unaffected as well as thosewith support for PDF input via PDFium. This issue is fixed in version 8.17.2. A workaround for those affected is to block the VipsForeignLoadPdf operation via vips_operation_block_set, which is available in most language bindings, or to set VIPS_BLOCK_UNTRUSTED environment variable at runtime, which will block all untrusted loaders including PDF input via poppler.
Weakness: CWE-126
Which versions are affected by CVE-2025-59933?
It affects 1 product.
Products include Libvips Libvips.
How do I fix CVE-2025-59933?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-59933 being exploited?
There is no known exploitation of CVE-2025-59933 in the wild and no public exploit code.
Other vulnerabilities in libvips
- CVE-2019-17534 Use after free in n/a
- CVE-2026-33327 Possible integer overflow leading to potential heap-based buffer overflow
- CVE-2026-35591 Possible heap-based buffer overflow when decoding TIFF image containing well-crafted tile
- CVE-2026-33328 Possible integer overflow on 32-bit systems when reading GIF images
- CVE-2026-35590 Possible out-of-bounds read leading to crash when decoding well-crafted EXIF metadata
Sources
Also known as DEBIAN-CVE-2025-59933, GHSA-q8px-4w5q-c2r4, UBUNTU-CVE-2025-59933.