Out-of-bounds Read in Academysoftwarefoundation Openexr
CVE-2026-34588
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wav…
Vulnerability class: Buffer Overflow
EPSS: 0.005 (38.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Academysoftwarefoundation Openexr — versions >= 3.1.0, <= 3.1.13, >= 3.2.0, < 3.2.7, >= 3.3.0, < 3.3.9
- Openexr
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-34588?
- CVE-2026-34588 is a high-severity vulnerability in Academysoftwarefoundation Openexr, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2026-04-06.
- How severe is CVE-2026-34588?
- High severity. CVSS v3 base score is 7.8 out of 10.