CVE-2026-70653
libvips: Possible heap-based buffer read overflow when decoding a well-crafted RLE Radiance image
Description
libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanline_read_old and read q[-1] before any prior pixel exists. A crafted Radiance image loaded through VipsForeignLoadRad can therefore disclose four bytes of adjacent heap data, most likely other image data. This issue is fixed in version 8.18.3.
INFO
Published Date :
Aug. 20, 2026, 9:17 p.m.
Last Modified :
Oct. 26, 2026, 10:10 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update libvips to version 8.18.3.
- Load images using safe methods.
- Validate image file formats.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-70653.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-70653 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-70653
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-70653 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-70653 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: libvips, Description: libvips es una biblioteca rápida de procesamiento de imágenes con bajas necesidades de memoria. Antes de la versión 8.18.3, el decodificador RLE de Radiance de estilo antiguo en libvips/foreign/radiance.c puede procesar un marcador de repetición al principio de una línea de escaneo en scanline_read_old y leer q[-1] antes de que exista cualquier píxel anterior. Una imagen Radiance manipulada cargada a través de VipsForeignLoadRad puede, por lo tanto, divulgar cuatro bytes de datos de pila adyacentes, muy probablemente otros datos de imagen. Este problema está corregido en la versión 8.18.3. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 21, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-70653', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-21T15:37:06.946015Z'} -
New CVE Received by [email protected]
Aug. 20, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'libvips', 'product': 'libvips', 'versions': [{'status': 'affected', 'version': '< 8.18.3'}]}] Added Description libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanline_read_old and read q[-1] before any prior pixel exists. A crafted Radiance image loaded through VipsForeignLoadRad can therefore disclose four bytes of adjacent heap data, most likely other image data. This issue is fixed in version 8.18.3. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-122 Added Reference https://github.com/libvips/libvips/commit/dc945573e15d598054e701c65b90a35b16b19304 Added Reference https://github.com/libvips/libvips/pull/5037 Added Reference https://github.com/libvips/libvips/releases/tag/v8.18.3 Added Reference https://github.com/libvips/libvips/security/advisories/GHSA-fh99-55jf-5hj3