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CVE-2026-16632

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3b1149646a02b3464259babc84ffad10f2ff9678f5e716df8d9d9a80043f41a8
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:boazsegev:facil.io:*:*:*:*:*:*:*:*"],"modules":["WebSocket Frame Parser"],"product":"facil.io","vendor":"boazsegev","versions":[{"status":"affected","version":"0.7.0"},{"status":"affected","version":"0.7.1"},{"status":"affected","version":"0.7.2"},{"status":"affected","version":"0.7.3"},{"status":"affected","version":"0.7.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":7.5,"vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-20","description":"Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"tags":["product"],"url":"https://github.com/boazsegev/facil.io/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/references/5
{"tags":["exploit","issue-tracking"],"url":"https://github.com/boazsegev/facil.io/issues/169"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/references/4
{"name":"CVE-2026-16632 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-16632"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://vuldb.com/submit/860585"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/adp/0/references/0
{"name":"Submit #860585 | facil.io <= 0.7.4 Improper Input Validation","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/860585"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/references/3
{"name":"VDB-382382 | boazsegev facil.io WebSocket Frame websocket_parser.h websocket_on_protocol_error input validation","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/382382"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/references/0
{"name":"VDB-382382 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/382382/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aade6e37c123e10b93c3bfddb3c82127adab43e09f36fbfc55128fac2ac3005f · sha256:c8202d91c31f9c0c… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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