Vulnerability in pocketsphinx
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as UBUNTU-CVE-2026-54559 has been found in pocketsphinx.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "pocketsphinx UBUNTU-CVE-2026-54559" on the vendor's site.
UBUNTU-CVE-2026-54559 (pocketsphinx)
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (unclassified) exists in pocketsphinx.
Check the vendor advisory for the affected versions of pocketsphinx.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'pocketsphinx' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
grep -r 'pocketsphinx' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
pocketsphinxを grep し、稼働しているサービス・バージョンを把握する。 -
2
Post-deployment verificationverify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Ubuntu:16.04:LTS | pocketsphinx |
All versions |
— |
| Ubuntu:18.04:LTS | pocketsphinx |
All versions |
— |
| Ubuntu:20.04:LTS | pocketsphinx |
All versions |
— |
| Ubuntu:22.04:LTS | pocketsphinx |
All versions |
— |
| Ubuntu:24.04:LTS | pocketsphinx |
All versions |
— |
| Ubuntu:26.10 | pocketsphinx |
All versions |
— |
| Ubuntu:26.04:LTS | pocketsphinx |
All versions |
— |
Original description The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- report ubuntu.com
- report cve.org
- report github.com
- report github.com
- report github.com