# CVE-2026-70652

## Summary

- **CVE ID:** CVE-2026-70652
- **Severity:** LOW
- **CVSS Score:** 2 (CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N)
- **CWE:** CWE-126
- **Published:** Aug 20, 2026
- **Last Modified:** Aug 21, 2026

## Description

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.

## Affected Products

- libvips — libvips (< 8.18.3)

## References

- [CNA](https://github.com/libvips/libvips/security/advisories/GHSA-h27h-jf9v-m8rg)
- [CNA](https://github.com/libvips/libvips/pull/5039)
- [CNA](https://github.com/libvips/libvips/commit/cff17794f0698a4f47c74bb31c9700b2c83252a8)
- [CNA](https://github.com/libvips/libvips/releases/tag/v8.18.3)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.11%
- **EPSS Percentile:** 1.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._