CVE-2026-54920: CWE-190: Integer Overflow or Wraparound in AcademySoftwareFoundation openexr
A vulnerability in OpenEXR versions 3.4.0 through 3.4.12 allows a crafted HTJ2K-compressed EXR file to cause an unconditional process abort when exr_start_read() is called on untrusted input. This results in a denial of service due to an assertion failure triggered by a specific QCD marker value. The issue arises from the OpenJPH library's use of an assertion that calls abort() directly, bypassing error handling. The vulnerability is fixed in version 3.4.13.
AI Analysis
Technical Summary
OpenEXR, used for the EXR image format, contains an integer overflow or wraparound vulnerability in its HTJ2K decode path in versions 3.4.0 through 3.4.12. A crafted EXR file with a QCD marker whose lower five bits are zero causes OpenJPH to trigger an assertion failure, leading to an unconditional process abort. This abort cannot be intercepted by error handling due to the design of OpenJPH and partial error handling in OpenEXR. The vulnerability results in a denial of service by crashing any application calling exr_start_read() on malicious input. The issue is resolved in version 3.4.13.
Potential Impact
The vulnerability causes a denial of service by crashing applications that process maliciously crafted EXR files using the affected OpenEXR versions. There is no impact on confidentiality, integrity, or availability beyond the denial of service. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade to OpenEXR version 3.4.13 or later, where this issue has been resolved. No other mitigations are indicated by the vendor advisory.
CVE-2026-54920: CWE-190: Integer Overflow or Wraparound in AcademySoftwareFoundation openexr
Description
A vulnerability in OpenEXR versions 3.4.0 through 3.4.12 allows a crafted HTJ2K-compressed EXR file to cause an unconditional process abort when exr_start_read() is called on untrusted input. This results in a denial of service due to an assertion failure triggered by a specific QCD marker value. The issue arises from the OpenJPH library's use of an assertion that calls abort() directly, bypassing error handling. The vulnerability is fixed in version 3.4.13.
CVSS v3.1
Score 0.0none
Affected software
pkg:github/academysoftwarefoundation/openexrRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenEXR, used for the EXR image format, contains an integer overflow or wraparound vulnerability in its HTJ2K decode path in versions 3.4.0 through 3.4.12. A crafted EXR file with a QCD marker whose lower five bits are zero causes OpenJPH to trigger an assertion failure, leading to an unconditional process abort. This abort cannot be intercepted by error handling due to the design of OpenJPH and partial error handling in OpenEXR. The vulnerability results in a denial of service by crashing any application calling exr_start_read() on malicious input. The issue is resolved in version 3.4.13.
Potential Impact
The vulnerability causes a denial of service by crashing applications that process maliciously crafted EXR files using the affected OpenEXR versions. There is no impact on confidentiality, integrity, or availability beyond the denial of service. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade to OpenEXR version 3.4.13 or later, where this issue has been resolved. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T13:49:33.557Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8ce3d2acd9273b495f0b89
Added to database: 08/25/2026, 00:37:38 UTC
Last enriched: 08/25/2026, 00:52:14 UTC
Last updated: 08/25/2026, 01:11:34 UTC
Views: 13
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