CVE-2026-53705: Gstreamer1-plugins-good: gstreamer: heap buffer overflow in wavpack decoder via integer overflow

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: 2026-06-15 · updated 2026-08-03
Weakness: CWE-190

Description

A flaw was found in GStreamer's WavPack audio decoder in gst-plugins-good. When processing a specially crafted WavPack file, an integer overflow in the buffer size calculation (4 * block_samples * channels) in gst_wavpack_dec_handle_frame() causes a very small heap allocation. The WavPack library then writes decoded audio samples far beyond the allocated buffer, resulting in heap memory corruption. This affects both 32-bit and 64-bit systems since the arithmetic is performed in 32-bit integers before promotion to the allocation size type. A remote attacker could use this flaw to crash an application or potentially execute arbitrary code by convincing a user to open a malicious WavPack audio file.

Affected products

Red Hat Enterprise Linux 10: all versions — fixed in 0:1.26.7-2.el10_2.1
Red Hat Enterprise Linux 10.0 Extended Update Support: all versions — fixed in 0:1.24.11-1.el10_0.3
Red Hat Enterprise Linux 7 Extended Lifecycle Support: all versions — fixed in 0:1.10.4-4.el7_9.1
Red Hat Enterprise Linux 8: all versions — fixed in 0:1.16.1-7.el8_10
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: all versions — fixed in 0:1.16.1-4.el8_4.1
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: all versions — fixed in 0:1.16.1-4.el8_4.1
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: all versions — fixed in 0:1.16.1-4.el8_6.1
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On: all versions — fixed in 0:1.16.1-4.el8_6.1
Red Hat Enterprise Linux 8.8 Telecommunications Update Service: all versions — fixed in 0:1.16.1-5.el8_8.1
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions: all versions — fixed in 0:1.16.1-5.el8_8.1
Red Hat Enterprise Linux 9: all versions — fixed in 0:1.22.12-7.el9_8.1
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions: all versions — fixed in 0:1.18.4-8.el9_2.1
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions: all versions — fixed in 0:1.22.1-4.el9_4.1
Red Hat Enterprise Linux 9.6 Extended Update Support: all versions — fixed in 0:1.22.12-5.el9_6.1

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 10 0:1.26.7-2.el10_2.1; Red Hat Enterprise Linux 10.0 Extended Update Support 0:1.24.11-1.el10_0.3; Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.10.4-4.el7_9.1; Red Hat Enterprise Linux 8 0:1.16.1-7.el8_10; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.16.1-4.el8_4.1; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.16.1-4.el8_4.1; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.16.1-4.el8_6.1; Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 0:1.16.1-4.el8_6.1; Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.16.1-5.el8_8.1; Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.16.1-5.el8_8.1; Red Hat Enterprise Linux 9 0:1.22.12-7.el9_8.1; Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.18.4-8.el9_2.1. Check the vendor advisory for mitigations.

References

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