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.
strukturag libheif — libheif allows Out-of-bounds vector access leading to invalid dereference (DoS)
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N R U N N H 6.5 .0025 17.0 —
AFFECTED
Product Versions Fixed
libheif < 1.22.0 – —
TIMELINE
Apr 16 Reserved by GitHub_M
May 22 EXPLOIT PUBLISHED — CVE-2026-41069 (strukturag libheif). Public exploit reference added.
May 22 Published (CNA: GitHub_M)
Description
libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entry_count == 0 (creating no chunks) while still passing validation because saio.entry_count == 0 matches, but with saiz.sample_count > 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in chunked mode.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2026 | Reserved | Reserved by GitHub_M |
| May 22, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-41069 (strukturag libheif). Public exploit reference added. |
| May 22, 2026 | Published | Published (CNA: GitHub_M) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| strukturag | libheif | — | < 1.22.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-41069 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.