OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 allow a crafted EXR with a nonzero dataWindow.min to make TypedFlatImageChannel::row() return an invalid heap pointer, causing out-of-bounds or use-after-free writes. This occurs when an application writes rows through FlatHalfChannel::row(). Affected consumers are tools, converters, render pipeline components, or image-processing services that accept untrusted EXR files and use FlatHalfChannel::row() on loaded images. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
CVE-2026-59184
HIGHPre-NVD 7.17.1—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 88% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(medium)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 12%
- KEV
- Not listed
Published
August 25, 2026
Last Modified
August 25, 2026
Advisory Details (4)
Auto-updated Aug 25, 2026🔬 Proof of concept available. Patch available. Sources: github, github_commit.
github_commit Patch Available
commit aef02224ba28 (AcademySoftwareFoundation/openexr)
Patch available: AcademySoftwareFoundation/openexr v3.3.13 (contains commit aef02224ba28)
https://github.com/AcademySoftwareFoundation/openexr/commit/aef02224ba282a802de65d16c49c1cdb82089decgithub_commit Patch Available
commit 55b7958ecb5a (AcademySoftwareFoundation/openexr)
Patch available: AcademySoftwareFoundation/openexr v3.4.14 (contains commit 55b7958ecb5a)
https://github.com/AcademySoftwareFoundation/openexr/commit/55b7958ecb5ac32c427ff39c1e063f6f7bbee77cgithub_commit Patch Available
commit 37f03b6ed90f (AcademySoftwareFoundation/openexr)
Patch available: AcademySoftwareFoundation/openexr v3.2.11 (contains commit 37f03b6ed90f)
https://github.com/AcademySoftwareFoundation/openexr/commit/37f03b6ed90f3dd9910f31de3a40f25f2bc2aca1github Patch Available🟡 PoC Available
OpenEXRUtil FlatImageChannel row nonzero dataWindow heap OOB write · Advisory · AcademySoftwareFoundation/openexr · GitHub
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-pqp9-558c-453qWeakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 12× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 00:15 UTCEG score recompute
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-27 21:18 UTCEG score recompute
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-26 20:51 UTCEG score recompute
- 2026-08-26 14:46 UTCEPSS rescore
- 2026-08-25 20:23 UTCEG score recompute
- 2026-08-25 19:36 UTCEG score recompute
- 2026-08-25 17:24 UTCEG score recompute
- 2026-08-25 16:40 UTCEG score recompute
- 2026-08-25 16:40 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-416 · CWE-787
Frequently asked(5)
What is CVE-2026-59184?
CVE-2026-59184 is a high vulnerability published on August 25, 2026. OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 allow a crafted EXR with a nonzero dataWindow.min to make TypedFlatImageChannel::row() return an…
When was CVE-2026-59184 disclosed?
CVE-2026-59184 was first published in the National Vulnerability Database on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59184 actively exploited?
CVE-2026-59184 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.9% of all scored CVEs.
What is the CVSS score of CVE-2026-59184?
CVE-2026-59184 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-59184?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59184, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-59184
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