CVE-2026-59156

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 29.8% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-29.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-18 15:34Z1 MO AGO

Last updated

2026-09-24 20:55Z1 MO AGO

Reserved

2026-07-02

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses

• CWE-674Uncontrolled RecursionClass

Data version

5.2

Document digest

54062d770ec54a25cd525d19e08eecf6ec1fb2786d8efff946d6cbc5950c7c88

• github.comhttps://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-xvwr-x6ch-v2fqx_refsource_CONFIRM
• github.comhttps://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5248x_refsource_MISC
• github.comhttps://github.com/AcademySoftwareFoundation/OpenImageIO/commit/b0de7d40d06eb4abc7ef14c1321a1a2a976d8c1cx_refsource_MISC
• github.comhttps://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0x_refsource_MISC
• github.comhttps://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0x_refsource_MISC