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  4. CVE 2026 110599 l smash through 2145 double free in hevc and h264
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-110599

L-SMASH through 2.14.5 Double Free in HEVC and H.264 Importer ProbeCVE-2026-110599

Answer in brief

CVE-2026-110599 records a Medium severity (CVSS 6.9) vulnerability in L-SMASH through 2.14.5 Double Free in HEVC and H.264 Importer Probe. The current sources do not mark it as known exploited. The current feed maps l-smash/l-smash (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 14, 2026Updated Oct 14, 2026Source checked Oct 14, 2026First seen by HOL Oct 14, 2026Material review Oct 14, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps l-smash/l-smash (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
l-smash/l-smashgeneric>=0 <=2.14.5Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for l-smash/l-smash.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 14, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencehackmd.io
  • Source referencevulncheck.com
Upstream source description

L-SMASH through 2.14.5 contains a double free vulnerability in hevc_setup_first_summary() and h264_setup_first_summary() in importer/nalu_imp.c that frees borrowed codec-specific objects on error paths. Attackers can supply a crafted Annex-B elementary stream lacking a parseable SPS to lsmash_read_file() or the boxdumper, remuxer, or muxer tools, causing use-after-free, heap corruption, and crashes.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • NGINX ngx_http_js_module vulnerabilitySame generic ecosystem
  • NGINX ngx_http_js_module vulnerabilitySame generic ecosystem
  • Angular SSR: Denial of Service (DoS) via Infinite Loop on Malformed DOCTYPESame generic ecosystem
  • Angular: Denial of Service via Numeric URL Matrix Parameters in Server-Side Rendering (SSR)Same generic ecosystem
  • Angular DevTools (Local DoS)Same generic ecosystem
  • mise permits untrusted local configuration to override default shell argumentsSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-415
Source
CVE List V5
Source checked
Oct 14, 2026
References
4 linked sources
Open source record