CVE-2026-29022 mackron CVE debrief

Who should care

Developers and users of the dr_libs library, particularly those using version 0.14.4 or earlier, should be aware of this vulnerability and take steps to mitigate it. This includes updating to a patched version of the library and being cautious when processing untrusted WAV files. The vulnerability has a medium defensive priority, and affected parties should review and implement necessary security measures.

Technical summary

The vulnerability is caused by a mismatch between sampleLoopCount validation in pass 1 and unconditional processing in pass 2 of the drwav__read_smpl_to_metadata_obj() function in dr_wav.h. This allows attackers to overflow heap allocations with 36 bytes of attacker-controlled data through any drwav_init_*_with_metadata() call on untrusted input. The vulnerability has a CVSS score of 6.8 and a severity of MEDIUM.

Defensive priority

Medium

Recommended defensive actions

• Update to a patched version of the dr_libs library
• Be cautious when processing untrusted WAV files
• Implement additional security measures to detect and prevent exploitation
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-03-03T20:16:49.433Z and was last modified on 2026-07-14T19:16:55.610Z. The NVD entry is currently Modified. This vulnerability affects dr_libs dr_wav.h version 0.14.4 and earlier. Evidence of exploitation is limited, and defenders should verify the accuracy of affected scope and vendor guidance.

Official resources