CVE Explorer
CVE-2026-34531
Flask-HTTPAuth provides Basic, Digest and Token HTTP authentication for Flask routes. Prior to version 4.8.1, in a situation where the client makes a request to a token protected resource without passing a token, or passing an empty token, Flask-HTTPAuth would invoke the application's token verification callback function with the token argument set to an empty string. If the application had any users in its database with an empty string set as their token, then it could potentially authenticate
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"Flask-HTTPAuth","vendor":"miguelgrinberg","versions":[{"status":"affected","version":"< 4.8.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/miguelgrinberg/Flask-HTTPAuth/releases/tag/v4.8.1","tags":["x_refsource_MISC"],"url":"https://github.com/miguelgrinberg/Flask-HTTPAuth/releases/tag/v4.8.1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/cna/references/2
{"name":"https://github.com/miguelgrinberg/Flask-HTTPAuth/security/advisories/GHSA-p44q-vqpr-4xmg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/miguelgrinberg/Flask-HTTPAuth/security/advisories/GHSA-p44q-vqpr-4xmg"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/cna/references/0
{"name":"https://github.com/miguelgrinberg/flask-httpauth/commit/b15ffe9e50e110d7174ccd944f642079e1dcf9ee","tags":["x_refsource_MISC"],"url":"https://github.com/miguelgrinberg/flask-httpauth/commit/b15ffe9e50e110d7174ccd944f642079e1dcf9ee"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/cna/references/1
{"url":"https://lists.debian.org/debian-lts-announce/2026/05/msg00049.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cbd340eaf6443d961323036644f40b221f2841e7cf647469dacb608f83f8a1af · sha256:6fa0473699742060… · /containers/adp/1/references/0
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.