CVE Explorer
CVE-2026-47086
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. GENURLAUTH-issued tokens can bypass ACLs. Any authenticated user could mint a URLAUTH token (via the GENURLAUTH command) for any mailbox they could name, even without read access on it. This would allow reading mail from mailboxes despite having no granted permissions.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Cyrus IMAP","vendor":"cyrusimap","versions":[{"lessThan":"3.12.3","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:98c1ab8598a7726f75fbb5942ebf47f23b62b20e76e582b0bdfa59f2b8ef3a07 · sha256:631bc7a4bfbbbefa… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:98c1ab8598a7726f75fbb5942ebf47f23b62b20e76e582b0bdfa59f2b8ef3a07 · sha256:631bc7a4bfbbbefa… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:98c1ab8598a7726f75fbb5942ebf47f23b62b20e76e582b0bdfa59f2b8ef3a07 · sha256:631bc7a4bfbbbefa… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:98c1ab8598a7726f75fbb5942ebf47f23b62b20e76e582b0bdfa59f2b8ef3a07 · sha256:631bc7a4bfbbbefa… · /containers/cna/references/1
{"url":"https://www.cyrusimap.org/imap/download/release-notes/index.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:98c1ab8598a7726f75fbb5942ebf47f23b62b20e76e582b0bdfa59f2b8ef3a07 · sha256:631bc7a4bfbbbefa… · /containers/cna/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.