CVE-2026-47087

LOWPre-NVD 3.53.5—
EchelonGraph scoreMEDIUM confidence

Score 3.5 from GitHub Security Advisory (severity: LOW) published 2026-07-16. a secondary CVSS source baseline 3.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
3.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 A URLAUTH URL minted while the authorizer had access continued to work after that access was revoked.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 v3
3.5
EG Score
3.5(medium)
EG Risk
16(Track)
EG Risk 16/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity35% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

July 16, 2026

Last Modified

July 17, 2026

References (2)

Vendor Advisories for CVE-2026-47087(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
cyrus-imapd3.10.0-1 ... 3.8.4-1 (77 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
cyrus-imapd3.6.1-4, 3.6.1-4+deb12u1, 3.6.1-4+deb12u2, 3.6.1-4+deb12u3, 3.6.1-4+deb12u43.6.1-4+deb12u5—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
cyrus-imapd3.10.2-1 ... 3.12.3-4 (13 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
cyrus-imapd3.10.2-1 ... 3.12.3-1~bpo13+1 (8 versions)3.12.3-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-11 09:37 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 16:01 UTCEPSS rescore
  6. 2026-09-06 13:47 UTCEPSS rescore
  7. 2026-09-05 20:45 UTCEG score recompute
  8. 2026-09-05 20:45 UTCGHSA enrichment
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-02 14:12 UTCEPSS rescore
  11. 2026-09-01 13:54 UTCEPSS rescore
  12. 2026-08-30 19:17 UTCEPSS rescore
  13. 2026-08-30 03:42 UTCEG score recompute
  14. 2026-08-30 03:42 UTCGHSA enrichment
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-27 01:26 UTCEG score recompute
  19. 2026-08-27 01:26 UTCGHSA enrichment
  20. 2026-08-26 14:46 UTCEPSS rescore
  21. 2026-08-25 13:49 UTCEPSS rescore
  22. 2026-08-24 04:32 UTCEG score recompute
  23. 2026-08-24 04:32 UTCGHSA enrichment
  24. 2026-08-23 00:19 UTCEPSS rescore
  25. 2026-08-21 23:49 UTCEPSS rescore
Show 59 more
  1. 2026-08-21 07:37 UTCEG score recompute
  2. 2026-08-21 07:37 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-18 13:48 UTCEPSS rescore
  6. 2026-08-18 10:43 UTCEG score recompute
  7. 2026-08-18 10:43 UTCGHSA enrichment
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 13:49 UTCEG score recompute
  11. 2026-08-15 13:49 UTCGHSA enrichment
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-13 22:00 UTCEPSS rescore
  14. 2026-08-12 16:54 UTCEG score recompute
  15. 2026-08-12 16:54 UTCGHSA enrichment
  16. 2026-08-12 13:51 UTCEPSS rescore
  17. 2026-08-11 00:00 UTCEPSS rescore
  18. 2026-08-09 20:00 UTCEG score recompute
  19. 2026-08-09 20:00 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-08 16:37 UTCEPSS rescore
  22. 2026-08-06 23:06 UTCEG score recompute
  23. 2026-08-06 23:06 UTCGHSA enrichment
  24. 2026-08-06 13:47 UTCEPSS rescore
  25. 2026-08-05 19:17 UTCEPSS rescore
  26. 2026-08-04 15:10 UTCEPSS rescore
  27. 2026-08-04 10:39 UTCEPSS rescore
  28. 2026-08-04 02:12 UTCEG score recompute
  29. 2026-08-04 02:12 UTCGHSA enrichment
  30. 2026-08-03 10:36 UTCEPSS rescore
  31. 2026-08-02 02:27 UTCEPSS rescore
  32. 2026-08-01 05:18 UTCEG score recompute
  33. 2026-08-01 05:18 UTCGHSA enrichment
  34. 2026-08-01 04:16 UTCEPSS rescore
  35. 2026-07-30 16:28 UTCEPSS rescore
  36. 2026-07-30 01:30 UTCEPSS rescore
  37. 2026-07-29 08:24 UTCEG score recompute
  38. 2026-07-29 08:24 UTCGHSA enrichment
  39. 2026-07-28 15:37 UTCEPSS rescore
  40. 2026-07-27 14:13 UTCEPSS rescore
  41. 2026-07-26 14:54 UTCEPSS rescore
  42. 2026-07-26 14:54 UTCEPSS rescore
  43. 2026-07-26 11:29 UTCEG score recompute
  44. 2026-07-26 11:28 UTCGHSA enrichment
  45. 2026-07-24 14:17 UTCEPSS rescore
  46. 2026-07-23 14:18 UTCEPSS rescore
  47. 2026-07-23 03:17 UTCEG score recompute
  48. 2026-07-22 14:08 UTCEPSS rescore
  49. 2026-07-21 15:24 UTCEPSS rescore
  50. 2026-07-20 17:08 UTCEPSS rescore
  51. 2026-07-19 14:31 UTCEPSS rescore
  52. 2026-07-19 02:36 UTCEG score recompute
  53. 2026-07-19 02:36 UTCGHSA enrichment
  54. 2026-07-19 02:29 UTCEPSS rescore
  55. 2026-07-18 10:04 UTCEPSS rescore
  56. 2026-07-17 07:06 UTCEG score recompute
  57. 2026-07-17 07:06 UTCGHSA enrichment
  58. 2026-07-16 18:49 UTCEG score recompute
  59. 2026-07-16 18:48 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-47087?
CVE-2026-47087 is a low vulnerability published on July 16, 2026. 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.
When was CVE-2026-47087 disclosed?
CVE-2026-47087 was first published in the National Vulnerability Database on July 16, 2026, with the most recent update on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47087 actively exploited?
CVE-2026-47087 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.0% of all scored CVEs.
What is the CVSS score of CVE-2026-47087?
CVE-2026-47087 has a CVSS v3 base score of 3.5 (NVD).
How do I remediate CVE-2026-47087?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47087, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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