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TI-2026-13880 Aliases CVE-2026-16632GHSA-5g3v-wh7g-2xvv

boazsegev facil.io WebSocket Frame websocket_parser.h websocket_on_protocol_error input validation

Priority HIGH 70CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

A flaw has been found in boazsegev facil.io up to 0.7.4. Affected is the function websocket_on_protocol_error in the library lib/facil/http/parsers/websocket_parser.h of the component WebSocket Frame Parser. This manipulation of the argument on_message causes improper input validation. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00522 44th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
boazsegevfacil.io0.7.0; 0.7.1; 0.7.2; 0.7.3; 0.7.4—No fix listedCNA
  • facil.io Vendorboazsegev Affected 0.7.0; 0.7.1; 0.7.2; 0.7.3; 0.7.4 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:boazsegev:facil.io:*:*:*:*:*:*:*:*——boazsegev
  • cpe:2.3:a:boazsegev:facil.io:*:*:*:*:*:*:*:* Versions — — ·boazsegev

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-16632
  2. 2026-10-03 Alias added: GHSA-5g3v-wh7g-2xvv

References

Exploit 1

Other 1

  • TI-2026-47389 facil.io 0.7.5 - 0.7.6 HTTP/1.1 Chunked Transfer Encoding Parser Crash DoS CVSS 4.0HIGH 8.7
  • TI-2026-47388 facil.io 0.6.0 - 0.7.6 Infinite Loop DoS via Multipart MIME Body Parser CVSS 4.0HIGH 8.7
  • TI-2026-47387 facil.io 0.6.0 - 0.7.6 Integer Underflow DoS via Multipart MIME Body Parser CVSS 4.0HIGH 8.7
  • TI-2026-29774 Uncontrolled resource consumption in boazsegev facil.io CVSS 4.0HIGH 8.7
  • TI-2026-13899 boazsegev facil.io Public Folder http.c http_sendfile2 path traversal CVSS 4.0MEDIUM 6.9
  • TI-2024-14668 Iodine Static File Server Path Traversal Vulnerability CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences