CVE-2026-19387: Gstreamer: gstreamer1-plugins-bad-free: gstreamer: heap out-of-bounds write in adpcmdec ima/dvi adpcm decoder

Severity: high (CVSS 7.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-10 · updated 2026-09-18
Weakness: CWE-787

Description

A heap out-of-bounds write vulnerability was found in the GStreamer gst-plugins-bad adpcmdec element when decoding IMA/DVI ADPCM audio. Insufficient validation of the per-block sample count for multi-channel streams allows a crafted WAV file to cause writes beyond the allocated output buffer. This can lead to application crash, denial of service, memory corruption, or potentially arbitrary code execution when untrusted media is processed.

Affected products

Red Hat Enterprise Linux 10: all versions — fixed in 0:1.26.7-2.el10_2.7
Red Hat Enterprise Linux 10.0 Extended Update Support: all versions — fixed in 0:1.24.11-3.el10_0.7
Red Hat Enterprise Linux 7 Extended Lifecycle Support: all versions — fixed in 0:1.10.4-8.el7_9
Red Hat Enterprise Linux 8: all versions — fixed in 0:1.16.1-9.el8_10.2
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: all versions — fixed in 0:1.16.1-4.el8_4.5
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: all versions — fixed in 0:1.16.1-4.el8_4.5
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: all versions — fixed in 0:1.16.1-4.el8_6.5
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On: all versions — fixed in 0:1.16.1-4.el8_6.5
Red Hat Enterprise Linux 8.8 Telecommunications Update Service: all versions — fixed in 0:1.16.1-4.el8_8.5
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions: all versions — fixed in 0:1.16.1-4.el8_8.5
Red Hat Enterprise Linux 9: all versions — fixed in 0:1.22.12-6.el9_8.2, 0:1.22.12-7.el9_8.4
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: all versions — fixed in 0:1.18.4-9.el9_2.6
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions: all versions — fixed in 0:1.22.1-6.el9_4.7
Red Hat Enterprise Linux 9.6 Extended Update Support: all versions — fixed in 0:1.22.12-5.el9_6.7

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 10 0:1.26.7-2.el10_2.7; Red Hat Enterprise Linux 10.0 Extended Update Support 0:1.24.11-3.el10_0.7; Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.10.4-8.el7_9; Red Hat Enterprise Linux 8 0:1.16.1-9.el8_10.2; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.16.1-4.el8_4.5; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.16.1-4.el8_4.5; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.16.1-4.el8_6.5; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:1.16.1-4.el8_6.5; Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.16.1-4.el8_8.5; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.16.1-4.el8_8.5; Red Hat Enterprise Linux 9 0:1.22.12-6.el9_8.2, 0:1.22.12-7.el9_8.4; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.18.4-9.el9_2.6. Check the vendor advisory for mitigations.

References

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