CVE-2026-47087: cyrusimap cyrus_imap
CVSS: 3.5v3.1LowDeferred
AliasesUBUNTU-CVE-2026-47087DEBIAN-CVE-2026-47087
Published 16-07-2026Last modified 16-07-2026
Vulnerability summary
CVE-2026-47087 is a low (CVSS 3.5) vulnerability in cyrusimap cyrus_imap. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 19.8% of scored vulnerabilities.
CVSS score
3.5/10
010
Low · v3.1 (CVE.org)EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 16-07-2026PublishedVulnerability first disclosed.
- 16-07-2026Last modifiedVulnerability information updated.
Description
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. URLAUTH does not honor revoked authorizer access. A URLAUTH URL minted while the authorizer had access continued to work after that access was revoked.
CVSS metrics
4 scores · 4 sources · 1 versionLow 3.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated3.5LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated3.5LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
- NVDNIST3.5LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
0.00 pp
From 0.29% on 20-09-2026
20-09-202620-10-2026
EPSS score0.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cyrusimap1 product
- cyrus_imap< 3.12.3
Debian1 product
- cyrus-imapd< 3.6.1-4+deb12u5 | < 3.10.2-1+deb13u2 | < 3.12.3-1
Ubuntu1 product
- cyrus-imapdAll versions (No fix recorded)
3 vendors · 3 products