CVE-2026-47083

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-07-16. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: 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. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Search would return UIDs of messages matching the search, creating a content oracle (without allowing arbitrary reads of the target's content).

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 16, 2026

Last Modified

July 17, 2026

Advisory Details (2)

Auto-updated Jul 17, 2026
No patch confirmed yet.
generic

Release Notes — Cyrus IMAP 3.12.3 documentation

https://www.cyrusimap.org/imap/download/release-notes/index.html
generic

Cyrus IMAP 3.12.3 Release Notes — Cyrus IMAP 3.12.3 documentation

https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html

Vendor Advisories for CVE-2026-47083(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-imapd3.10.0-1 ... 3.8.4-1 (43 versions)——
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 10× in last 7d / 61× 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.

Showing the most recent 100 of 128 total refreshes for this CVE.

  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. 2026-09-08 00:39 UTCEG score recompute
  6. 2026-09-08 00:39 UTCGHSA enrichment
  7. 2026-09-07 16:01 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-05 20:45 UTCEG score recompute
  10. 2026-09-05 20:45 UTCGHSA enrichment
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-08-31 02:27 UTCEG score recompute
  15. 2026-08-31 02:27 UTCGHSA enrichment
  16. 2026-08-30 19:17 UTCEPSS rescore
  17. 2026-08-30 03:42 UTCEG score recompute
  18. 2026-08-30 03:42 UTCGHSA enrichment
  19. 2026-08-30 01:22 UTCEPSS rescore
  20. 2026-08-28 21:41 UTCEPSS rescore
  21. 2026-08-27 21:42 UTCEG score recompute
  22. 2026-08-27 21:42 UTCGHSA enrichment
  23. 2026-08-27 14:25 UTCEPSS rescore
  24. 2026-08-26 22:57 UTCEG score recompute
  25. 2026-08-26 22:57 UTCGHSA enrichment
Show 75 more
  1. 2026-08-26 14:46 UTCEPSS rescore
  2. 2026-08-25 23:53 UTCEG score recompute
  3. 2026-08-25 23:53 UTCGHSA enrichment
  4. 2026-08-25 13:49 UTCEPSS rescore
  5. 2026-08-24 23:30 UTCEG score recompute
  6. 2026-08-24 23:30 UTCGHSA enrichment
  7. 2026-08-24 00:44 UTCGHSA enrichment
  8. 2026-08-23 01:58 UTCEG score recompute
  9. 2026-08-23 01:58 UTCGHSA enrichment
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 03:13 UTCEG score recompute
  12. 2026-08-22 03:13 UTCGHSA enrichment
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-21 04:22 UTCEG score recompute
  15. 2026-08-21 04:22 UTCGHSA enrichment
  16. 2026-08-20 22:55 UTCEPSS rescore
  17. 2026-08-20 05:37 UTCEG score recompute
  18. 2026-08-20 05:36 UTCGHSA enrichment
  19. 2026-08-19 17:04 UTCEPSS rescore
  20. 2026-08-19 06:51 UTCEG score recompute
  21. 2026-08-19 06:51 UTCGHSA enrichment
  22. 2026-08-18 13:48 UTCEPSS rescore
  23. 2026-08-18 07:12 UTCGHSA enrichment
  24. 2026-08-17 08:27 UTCEG score recompute
  25. 2026-08-17 08:27 UTCGHSA enrichment
  26. 2026-08-16 14:56 UTCEPSS rescore
  27. 2026-08-16 09:42 UTCEG score recompute
  28. 2026-08-16 09:42 UTCGHSA enrichment
  29. 2026-08-16 02:14 UTCEPSS rescore
  30. 2026-08-15 10:58 UTCEG score recompute
  31. 2026-08-15 10:58 UTCGHSA enrichment
  32. 2026-08-15 01:30 UTCEPSS rescore
  33. 2026-08-14 12:12 UTCEG score recompute
  34. 2026-08-14 12:12 UTCGHSA enrichment
  35. 2026-08-13 22:00 UTCEPSS rescore
  36. 2026-08-13 13:27 UTCGHSA enrichment
  37. 2026-08-12 14:42 UTCEG score recompute
  38. 2026-08-12 14:42 UTCGHSA enrichment
  39. 2026-08-12 13:51 UTCEPSS rescore
  40. 2026-08-11 15:56 UTCEG score recompute
  41. 2026-08-11 15:56 UTCGHSA enrichment
  42. 2026-08-11 00:00 UTCEPSS rescore
  43. 2026-08-10 17:11 UTCGHSA enrichment
  44. 2026-08-09 18:26 UTCEG score recompute
  45. 2026-08-09 18:26 UTCGHSA enrichment
  46. 2026-08-09 13:46 UTCEPSS rescore
  47. 2026-08-08 19:41 UTCEG score recompute
  48. 2026-08-08 19:41 UTCGHSA enrichment
  49. 2026-08-08 16:37 UTCEPSS rescore
  50. 2026-08-07 20:55 UTCEG score recompute
  51. 2026-08-07 20:55 UTCGHSA enrichment
  52. 2026-08-06 22:10 UTCEG score recompute
  53. 2026-08-06 22:10 UTCGHSA enrichment
  54. 2026-08-06 13:47 UTCEPSS rescore
  55. 2026-08-05 23:25 UTCEG score recompute
  56. 2026-08-05 23:25 UTCGHSA enrichment
  57. 2026-08-05 19:17 UTCEPSS rescore
  58. 2026-08-05 00:40 UTCEG score recompute
  59. 2026-08-05 00:40 UTCGHSA enrichment
  60. 2026-08-04 15:10 UTCEPSS rescore
  61. 2026-08-04 10:39 UTCEPSS rescore
  62. 2026-08-04 01:56 UTCEG score recompute
  63. 2026-08-04 01:56 UTCGHSA enrichment
  64. 2026-08-03 10:36 UTCEPSS rescore
  65. 2026-08-03 03:11 UTCGHSA enrichment
  66. 2026-08-02 04:25 UTCEG score recompute
  67. 2026-08-02 04:25 UTCGHSA enrichment
  68. 2026-08-02 02:27 UTCEPSS rescore
  69. 2026-08-01 05:40 UTCEG score recompute
  70. 2026-08-01 05:39 UTCGHSA enrichment
  71. 2026-08-01 04:16 UTCEPSS rescore
  72. 2026-07-31 06:54 UTCEG score recompute
  73. 2026-07-31 06:54 UTCGHSA enrichment
  74. 2026-07-30 16:28 UTCEPSS rescore
  75. 2026-07-30 08:08 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-47083?
CVE-2026-47083 is a medium vulnerability published on July 16, 2026. An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Search would return UIDs of messages matching the search,…
When was CVE-2026-47083 disclosed?
CVE-2026-47083 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-2026-47083 actively exploited?
CVE-2026-47083 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 76.9% of all scored CVEs.
What is the CVSS score of CVE-2026-47083?
CVE-2026-47083 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-47083?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47083, 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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