CVE-2026-70652

What it is

libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, libvips built with libultrahdr support can incorrectly size an output buffer in libvips/foreign/uhdrsave.c within vips_foreign_save_uhdr_set_raw_hdr when a pipeline enlarges an incoming JPEG to a very large output before encoding a gain map through VipsForeignSaveUhdr. The undersized allocation can cause a heap buffer over-read that may disclose adjacent data or crash the process. This issue is fixed in version 8.18.3.

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. Limited direct impact.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-20 21:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-26 10:10 UTC Last updatedMost recent change to the record

Details

Published

2026-08-20 21:17 UTC

Last modified

2026-10-26 10:10 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-126

Record status

Deferred

Attack profile CVSS 4.0 · 2.0

Attack vector

Local

Complexity

High

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

Low

Integrity

None

Availability

Low