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  4. CVE 2026 90786 dvidelabs flatcc duplicate symbol semanticsc
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Back to active CVEs
Medium · CVSS 6.9CVE-2026-90786

Dvidelabs flatcc Duplicate Symbol semantics.c align_order_members assertionCVE-2026-90786

Answer in brief

CVE-2026-90786 records a Medium severity (CVSS 6.9) vulnerability in Dvidelabs flatcc Duplicate Symbol semantics.c align_order_members assertion. The current sources do not mark it as known exploited. The current feed maps Dvidelabs/flatcc (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 Sep 14, 2026Updated Sep 15, 2026Source checked Oct 29, 2026First seen by HOL Sep 14, 2026Material review Sep 15, 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 Dvidelabs/flatcc (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Dvidelabs/flatccgeneric0.6.0 || 0.6.1 || 0.6.2 || 0.6.3Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Dvidelabs/flatcc.
  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

    Sep 14, 2026

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

  2. Source modified

    Sep 15, 2026

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

  3. First seen by HOL

    Sep 14, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

A vulnerability was determined in Dvidelabs flatcc up to 0.6.3. This impacts the function align_order_members of the file src/compiler/semantics.c of the component Duplicate Symbol Handler. This manipulation causes reachable assertion. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: 8b19ba4e992ebcad7f5970704d1afc5507fa5205. To fix this issue, it is recommended to deploy a patch.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Wasmtime 49.0.0 before 49.0.3 Host Panic via Overlapping String Transcode in Fused AdapterAlso CWE-617
  • Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Panic via StreamReader Type MismatchAlso CWE-617
  • Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Panic After TrapAlso CWE-617
  • Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via Func::callAlso CWE-617
  • Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via call_async DropAlso CWE-617

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-617
Source
CVE List V5
Source checked
Oct 29, 2026
References
7 linked sources
Open source record