CVE-2026-68516

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Source
https://cve.org/CVERecord?id=CVE-2026-68516
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68516.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-68516
Aliases
  • GHSA-fw66-6xph-56jm
Downstream
Related
Published
2026-08-24T22:08:49Z
Modified
2026-10-28T02:31:08Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
OpenEXR: HTJ2K SIZ image-offset gap stack buffer overflow
Details

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. From version 3.4.0 through 3.4.13, a crafted HTJ2K-compressed EXR can crash OpenEXR during normal decode. An HTJ2K-compressed EXR whose JPEG 2000 SIZ fields place the first tile outside the visible image can reach invalid tile and codeblock geometry in the vendored OpenJPH AVX2 decoder, causing a stack out-of-bounds write and denial of service. OpenEXR's HTJ2K path validates the decoded codestream dimensions against the EXR chunk size, but it does not reject SIZ image-offset/tile-grid geometry where the first tile does not intersect the image. This issue is fixed in version 3.4.14.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-121",
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68516.json"
}
References

Affected packages

Git / github.com/academysoftwarefoundation/openexr

Affected ranges

Type
GIT
Repo
https://github.com/academysoftwarefoundation/openexr
Events
Introduced
20a65852895894434bea88613f6d29ac8e88bd6e
Fixed
777d231a179de1711d2a942810d9559216ab3f4c
Fixed
45521f92104373b5c850f27f2d4659ab6759e848
Fixed
85009d840cc085aa96ad03ae76fa6463defeb0e5
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "3.4.0"
                },
                {
                    "fixed": "3.4.14"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "45521f92104373b5c850f27f2d4659ab6759e848"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "range": [
                {
                    "fixed": "85009d840cc085aa96ad03ae76fa6463defeb0e5"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v3.*
v3.4.0
v3.4.1
v3.4.1-rc
v3.4.1-rc2
v3.4.10
v3.4.10-rc
v3.4.11
v3.4.11-rc
v3.4.11-rc2
v3.4.11-rc3
v3.4.12
v3.4.12-rc2
v3.4.13
v3.4.13-rc
v3.4.13-rc2
v3.4.13-rc3
v3.4.2
v3.4.2-rc
v3.4.2-rc2
v3.4.3
v3.4.3-rc
v3.4.3-rc2
v3.4.3-rc3
v3.4.4
v3.4.4-rc
v3.4.4-rc2
v3.4.5
v3.4.5-rc
v3.4.6
v3.4.6-rc
v3.4.7
v3.4.7-rc
v3.4.8
v3.4.8-rc
v3.4.9
v3.4.9-rc

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68516.json"