CVE-2026-48029 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-48029HIGH

strukturag libheif — libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  L  N  H    7.1   .0030   23.1     —

AFFECTED
  Product  Versions               Fixed
  libheif  >= 1.19.0, < 1.22.0 –  —

TIMELINE
  May 20  Reserved by GitHub_M
  Jul 22  EXPLOIT PUBLISHED — CVE-2026-48029 (strukturag libheif). Public exploit reference added.
  Jul 22  Published (CNA: GitHub_M)

CWE-125, CWE-191 · CNA: GitHub_M · CVSS v3.1 · 2 references · NVD status: Analyzed

Description

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 20, 2026	Reserved	Reserved by GitHub_M
July 22, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-48029 (strukturag libheif). Public exploit reference added.
July 22, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
strukturag	libheif	—	>= 1.19.0, < 1.22.0	—

Weaknesses

CWE-125 · CWE-191

References (2)

https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157 [Patch]
https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv [Mitigation, Vendor Advisory, Exploit]

Authoritative record: CVE-2026-48029 at cve.org

Vendors: strukturag

Weaknesses: CWE-125 · CWE-191

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-48029 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.