Unrated

UBUNTU-CVE-2026-1940

Type: advisorySource: OSV1 source record

An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read.

Announced 23 Mar 2026Source revision 1

Original source ↗

UBUNTU-CVE-2026-1940

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:UBUNTU-CVE-2026-1940

gst-plugins-bad1.0

Source reference: /affected/0/package/name

Affected versions: 1.2.0-3ubuntu5
Source reference: /affected/0/versions
1.2.1-1ubuntu1
Source reference: /affected/0/versions
1.2.1-1ubuntu2
Source reference: /affected/0/versions
1.2.2-1ubuntu1
Source reference: /affected/0/versions
1.2.2-1ubuntu2
Source reference: /affected/0/versions
1.2.2-1ubuntu4
Source reference: /affected/0/versions
1.2.3-1ubuntu1
Source reference: /affected/0/versions
1.2.3-1ubuntu2
Source reference: /affected/0/versions
1.2.4-1~ubuntu1
Source reference: /affected/0/versions
1.2.4-1~ubuntu1.1
Source reference: /affected/0/versions
1.2.4-1~ubuntu1.1+esm1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gst-plugins-bad1.0

Source reference: /affected/1/package/name

Affected versions: 1.6.0-1ubuntu1
Source reference: /affected/1/versions
1.6.1-1ubuntu1
Source reference: /affected/1/versions
1.6.2-1ubuntu1
Source reference: /affected/1/versions
1.7.1-1ubuntu1
Source reference: /affected/1/versions
1.7.1-1ubuntu3
Source reference: /affected/1/versions
1.7.1-1ubuntu4
Source reference: /affected/1/versions
1.7.2-1ubuntu1
Source reference: /affected/1/versions
1.7.90-1ubuntu2
Source reference: /affected/1/versions
1.7.91-1ubuntu1
Source reference: /affected/1/versions
1.8.0-1ubuntu1
Source reference: /affected/1/versions
1.8.1-1ubuntu0.1
Source reference: /affected/1/versions
1.8.2-1ubuntu0.1
Source reference: /affected/1/versions
1.8.2-1ubuntu0.2
Source reference: /affected/1/versions
1.8.3-1ubuntu0.2
Source reference: /affected/1/versions
1.8.3-1ubuntu0.2+esm1
Source reference: /affected/1/versions
1.8.3-1ubuntu0.2+esm2
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gst-plugins-bad1.0

Source reference: /affected/2/package/name

Affected versions: 1.12.3-1ubuntu1
Source reference: /affected/2/versions
1.12.3-1ubuntu2
Source reference: /affected/2/versions
1.12.3-2ubuntu1
Source reference: /affected/2/versions
1.12.4-2ubuntu1
Source reference: /affected/2/versions
1.12.4-2ubuntu2
Source reference: /affected/2/versions
1.13.1-1ubuntu1
Source reference: /affected/2/versions
1.13.91-1ubuntu1
Source reference: /affected/2/versions
1.14.0-1ubuntu1
Source reference: /affected/2/versions
1.14.1-1ubuntu1~ubuntu18.04.1
Source reference: /affected/2/versions
1.14.4-1ubuntu1~ubuntu18.04.1
Source reference: /affected/2/versions
1.14.5-0ubuntu1~18.04.1
Source reference: /affected/2/versions
1.14.5-0ubuntu1~18.04.1+esm1
Source reference: /affected/2/versions
1.14.5-0ubuntu1~18.04.1+esm2
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gst-plugins-bad1.0

Source reference: /affected/3/package/name

Affected versions: 1.16.1-1ubuntu1
Source reference: /affected/3/versions
1.16.1-1ubuntu3
Source reference: /affected/3/versions
1.16.1-1ubuntu4
Source reference: /affected/3/versions
1.16.1-1ubuntu5
Source reference: /affected/3/versions
1.16.1-1ubuntu6
Source reference: /affected/3/versions
1.16.1-1ubuntu8
Source reference: /affected/3/versions
1.16.2-1ubuntu1
Source reference: /affected/3/versions
1.16.2-1ubuntu2
Source reference: /affected/3/versions
1.16.2-2ubuntu1
Source reference: /affected/3/versions
1.16.2-2.1ubuntu1
Source reference: /affected/3/versions
1.16.3-0ubuntu1
Source reference: /affected/3/versions
1.16.3-0ubuntu1.1
Source reference: /affected/3/versions
1.16.3-0ubuntu1.1+esm1
Source reference: /affected/3/versions
1.16.3-0ubuntu1.1+esm2
Source reference: /affected/3/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gst-plugins-bad1.0

Source reference: /affected/4/package/name

Affected versions: 1.18.5-1ubuntu1
Source reference: /affected/4/versions
1.18.5-1ubuntu3
Source reference: /affected/4/versions
1.20.0-2ubuntu2
Source reference: /affected/4/versions
1.20.1-1ubuntu2
Source reference: /affected/4/versions
1.20.3-0ubuntu1
Source reference: /affected/4/versions
1.20.3-0ubuntu1.1
Source reference: /affected/4/versions
1.20.3-0ubuntu1.1+esm2
Source reference: /affected/4/versions
1.20.3-0ubuntu1.1+esm3
Source reference: /affected/4/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gst-plugins-bad1.0

Source reference: /affected/5/package/name

Affected versions: 1.22.4-1ubuntu1
Source reference: /affected/5/versions
1.22.4-1ubuntu2
Source reference: /affected/5/versions
1.22.4-1ubuntu4
Source reference: /affected/5/versions
1.22.9-2ubuntu1
Source reference: /affected/5/versions
1.24.0-1ubuntu3
Source reference: /affected/5/versions
1.24.0-1ubuntu4
Source reference: /affected/5/versions
1.24.2-1ubuntu4
Source reference: /affected/5/versions
1.24.2-1ubuntu4+esm1
Source reference: /affected/5/versions
1.24.2-1ubuntu4+esm2
Source reference: /affected/5/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

gst-plugins-bad1.0

Source reference: /affected/6/package/name

Affected versions: 1.26.0-1ubuntu2
Source reference: /affected/6/versions
1.26.2-1ubuntu1
Source reference: /affected/6/versions
1.26.3-1ubuntu1
Source reference: /affected/6/versions
1.26.4-1ubuntu1
Source reference: /affected/6/versions
1.26.5-1ubuntu2
Source reference: /affected/6/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

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        },
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        },
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        },
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      "purl": "pkg:deb/ubuntu/gst-plugins-bad1.0?arch=source&distro=questing",
      "ecosystem": "Ubuntu:25.10"
    },
    "versions": [
      "1.26.0-1ubuntu2",
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      "1.26.3-1ubuntu1",
      "1.26.4-1ubuntu1",
      "1.26.5-1ubuntu2"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1940.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "gir1.2-gst-plugins-bad-1.0",
          "binary_version": "1.26.5-1ubuntu2"
        },
        {
          "binary_name": "gstreamer1.0-opencv",
          "binary_version": "1.26.5-1ubuntu2"
        },
        {
          "binary_name": "gstreamer1.0-plugins-bad",
          "binary_version": "1.26.5-1ubuntu2"
        },
        {
          "binary_name": "gstreamer1.0-plugins-bad-apps",
          "binary_version": "1.26.5-1ubuntu2"
        },
        {
          "binary_name": "libgstreamer-opencv1.0-0",
          "binary_version": "1.26.5-1ubuntu2"
        },
        {
          "binary_name": "libgstreamer-plugins-bad1.0-0",
          "binary_version": "1.26.5-1ubuntu2"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #51944 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 14:36:32 GMT
Publisher date: Mon, 23 Mar 2026 22:16:00 GMT

Read the original announcement