CVE-2026-49346

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Source
https://cve.org/CVERecord?id=CVE-2026-49346
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49346.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49346
Aliases
  • GHSA-vv8h-932h-7r86
Downstream
Published
2026-06-19T20:12:14.958Z
Modified
2026-07-08T08:05:31.615867597Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H CVSS Calculator
Summary
libde265 has a heap buffer overflow in de265_image_get_buffer via SPS dimension integer overflow
Details

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in de265_image_get_buffer() (libde265/image.cc:128). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent fill_image() call computes the real size using size_t, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49346.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-190"
    ]
}
References

Affected packages

Git / github.com/strukturag/libde265

Affected ranges

Type
GIT
Repo
https://github.com/strukturag/libde265
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f0e5137ee10af674dcb5ac8ed5d02f5a102225af
Fixed
8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8
Database specific 
{
    "cpe": "cpe:2.3:a:struktur:libde265:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.1.0"
        }
    ]
}

Affected versions

v0.*
v0.1
v0.2
v0.3
v0.4
v0.5
v1.*
v1.0.0
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49346.json"