CVE-2026-6491: Heap-based Buffer Overflow in libvips
A security vulnerability has been detected in libvips up to 8.18.2. The affected element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Such manipulation of the argument n leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor confirms that they will "be removing the deprecated area in libvips 8.19".
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in libvips (up to version 8.18.2) specifically in the im_minpos_vec function of the deprecated vips7compat.c file used by the nip2 Handler component. The issue is triggered by manipulation of the argument n, which causes an overflow on the heap. Exploitation requires local access with low privileges and no user interaction. The vendor has indicated that the deprecated code containing the vulnerability will be removed in libvips 8.19, but no direct patch or remediation is currently documented.
Potential Impact
Successful exploitation of this vulnerability could lead to heap memory corruption, potentially causing application crashes or arbitrary code execution with local privileges. However, the attack vector is local, limiting remote exploitation. The CVSS 4.8 score reflects a medium severity impact with low attack complexity and privileges required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The vendor has stated the deprecated code containing the vulnerability will be removed in libvips 8.19, which may mitigate the issue. Until an official fix is released, users should consider restricting local access to vulnerable systems and monitor vendor communications for updates.
CVE-2026-6491: Heap-based Buffer Overflow in libvips
Description
A security vulnerability has been detected in libvips up to 8.18.2. The affected element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Such manipulation of the argument n leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor confirms that they will "be removing the deprecated area in libvips 8.19".
CVSS v4.0
Score 4.8medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in libvips (up to version 8.18.2) specifically in the im_minpos_vec function of the deprecated vips7compat.c file used by the nip2 Handler component. The issue is triggered by manipulation of the argument n, which causes an overflow on the heap. Exploitation requires local access with low privileges and no user interaction. The vendor has indicated that the deprecated code containing the vulnerability will be removed in libvips 8.19, but no direct patch or remediation is currently documented.
Potential Impact
Successful exploitation of this vulnerability could lead to heap memory corruption, potentially causing application crashes or arbitrary code execution with local privileges. However, the attack vector is local, limiting remote exploitation. The CVSS 4.8 score reflects a medium severity impact with low attack complexity and privileges required.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The vendor has stated the deprecated code containing the vulnerability will be removed in libvips 8.19, which may mitigate the issue. Until an official fix is released, users should consider restricting local access to vulnerable systems and monitor vendor communications for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-17T07:21:38.455Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e2424ebdfbbecc592bf521
Added to database: 4/17/2026, 2:23:10 PM
Last enriched: 4/24/2026, 4:13:28 PM
Last updated: 6/1/2026, 9:05:26 AM
Views: 111
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