libvips up to 8.18.2 nip2 vips7compat.c im_minpos_vec n heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k2.93

Summaryinfo

A vulnerability classified as problematic has been found in libvips up to 8.18.2. The impacted element is the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. Performing a manipulation of the argument n results in heap-based overflow. This vulnerability is known as CVE-2026-6491. Attacking locally is a requirement. Furthermore, an exploit is available. The vendor confirms that they will "be removing the deprecated area in libvips 8.19".

Detailsinfo

A vulnerability was found in libvips up to 8.18.2. It has been classified as problematic. This affects the function im_minpos_vec of the file libvips/deprecated/vips7compat.c of the component nip2 Handler. The manipulation of the argument n with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-6491. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor confirms that they will "be removing the deprecated area in libvips 8.19".

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/17/2026 Advisory disclosed
04/17/2026 +0 days VulDB entry created
04/17/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 4965
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-6491 (🔒)
GCVE (CVE): GCVE-0-2026-6491
GCVE (VulDB): GCVE-100-358035
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/17/2026 09:27
Changes: 04/17/2026 09:27 (59)
Complete: 🔍
Submitter: biniam
Cache ID: 216::103

Submitinfo

Accepted

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