CVE-2026-54559

PocketSphinx is a small speech recognizer. Prior to 5.1.1, the trie language-model loaders in src/lm/ngram_model_trie.c do not adequately validate boundary conditions in ARPA, DMP, and binary format headers, and the acoustic-model loaders in src/mdef.c and src/util/bio.c use sscanf with unbounded string fields. Loading an invalid, corrupted, or malicious language or acoustic model can therefore cause stack or heap buffer overflows and memory corruption. An attacker who can write to a directory selected by POCKETSPHINX_PATH can replace or add a model file that PocketSphinx later loads; users of PocketSphinx 5prealpha have no backported patch and must migrate to the fixed release. This issue is fixed in version 5.1.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/cmusphinx/pocketsphinx/commit/2a3c03788a9973eff548664334fb781e9f4ad4a5
https://github.com/cmusphinx/pocketsphinx/releases/tag/v5.1.1
https://github.com/cmusphinx/pocketsphinx/security/advisories/GHSA-56r5-2p2f-7cxp

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 20:16

Updated : 2026-09-15 20:17

NVD link : CVE-2026-54559

Mitre link : CVE-2026-54559

CVE.ORG link : CVE-2026-54559

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

CWE-122

Heap-based Buffer Overflow

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