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CVE-2026-2641

A weakness has been identified in universal-ctags ctags up to 6.2.1. The affected element is the function parseExpression/parseExprList of the file parsers/v.c of the component V Language Parser. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. 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:ab14e2f9e11ac283229dc4a4ea3fd736dcf4cf8f536ddd261cdfdac845c8b69f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-674","description":"Uncontrolled Recursion","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-404","description":"Denial of Service","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"modules":["V Language Parser"],"product":"ctags","vendor":"universal-ctags","versions":[{"status":"affected","version":"6.2.0"},{"status":"affected","version":"6.2.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":3.3,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-674","description":"Uncontrolled Recursion","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-404","description":"Denial of Service","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/problemTypes/1/descriptions/0

Source references

6 source assertions
{"tags":["exploit"],"url":"https://github.com/oneafter/0116/blob/main/poc.v"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/references/4
{"tags":["product"],"url":"https://github.com/universal-ctags/ctags/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/references/5
{"tags":["issue-tracking"],"url":"https://github.com/universal-ctags/ctags/issues/4369"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/references/3
{"name":"VDB-346397 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.346397"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/references/1
{"name":"VDB-346397 | universal-ctags V Language v.c parseExprList recursion","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.346397"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/references/0
{"name":"Submit #752768 | universal-ctags ctags master-branch Uncontrolled Recursion","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.752768"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4beaa5435bef69e9ebb45d608ebff1c02ba2fffb08e7a64462b77ecdd0417174 · sha256:8e2c10a5ca6c9cf5… · /containers/cna/references/2

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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