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Vulnerability · Published Oct 14, 2026 · Assigned by VulnCheck

CVE-2026-110597Tinyexr through 3.2.0 Heap Out-of-Bounds Read via ParseEXRMultipartHeaderFromMemory

Medium 6.1

In plain English

A medium-severity out-of-bounds read in tinyexr from syoyo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 83.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Tinyexr through 3.2.0 contains a heap out-of-bounds read vulnerability in ParseEXRMultipartHeaderFromMemory() that allows attackers to read beyond buffers due to a stale remaining-size value. Attackers can supply a crafted multi-part EXR file whose later part headers bypass ReadAttribute() bounds checks, crashing applications or leaking adjacent heap memory into attribute values.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12tinyexrno fix listedDEBIAN-CVE-2026-110597
Debian:13tinyexrno fix listedDEBIAN-CVE-2026-110597
Debian:14tinyexrno fix listedDEBIAN-CVE-2026-110597
Ubuntu:22.04:LTStinyexrno fix listedUBUNTU-CVE-2026-110597
Ubuntu:24.04:LTStinyexrno fix listedUBUNTU-CVE-2026-110597
Ubuntu:26.04:LTStinyexrno fix listedUBUNTU-CVE-2026-110597
Ubuntu:26.10tinyexrno fix listedUBUNTU-CVE-2026-110597

Affected products (as reported)

VendorProductVersions
syoyo tinyexr 0 – through 3.2.0

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

References