HarborGuard / CVE
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CRITICALCVE-2026-22904Published Modified CNA CERTVDE

CVE-2026-22904: Stack Overflow via Oversized Cookie Fields in lighttpd

Improper length handling when parsing multiple cookie fields (including TRACKID) allows an unauthenticated remote attacker to send oversized cookie values and trigger a stack buffer overflow, resulting in a denial‑of‑service condition and possible remote code execution.

Metrics

CVSS v3.1
9.8
Severity
CRITICAL
Fixed in
—
Affected Products
4
Affected packages
  • WAGO / 0852-1322
    ≤ 2.64
  • WAGO / 0852-1328
    ≤ 2.64
  • WAGO / 0852-1322
    2.64
  • WAGO / 0852-1328
    2.64
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References