What is CVE-2026-21413?

CVE-2026-21413 is a critical-severity vulnerability in Libraw, classified under Improper Validation of Array Index. CVSS score: 9.8/10. Published 2026-04-07.

How severe is CVE-2026-21413?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Libraw

CVE-2026-21413

A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a mal…

EPSS: 0.001 (23.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Libraw — versions Commit 0b56545, Commit d20315b

Weakness classification (CWE)

CWE-129 — Improper Validation of Array Index

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2331

Frequently asked questions

What is CVE-2026-21413?: CVE-2026-21413 is a critical-severity vulnerability in Libraw, classified under Improper Validation of Array Index. CVSS score: 9.8/10. Published 2026-04-07.
How severe is CVE-2026-21413?: Critical severity. CVSS v3 base score is 9.8 out of 10.