CVE-2026-75010

MEDIUMNVD 4.36.4▲
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-08-17. NVD baseline CVSS 4.3; sources differ by 2.1.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the modoboa driver of the password plugin could leak a Modoboa API authentication token to a user-controlled host via crafted session data. This issue only affects Roundcube instances using the password plugin with its modoboa driver.

CVSS v3
4.3
EG Score
6.4MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA SSVC

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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 17, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 17, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

Security updates 1.6.18 and 1.7.3 released

https://roundcube.net/news/2026/08/09/security-updates-1.6.18-and-1.7.3
github_commit

commit b0e26d617e7b (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit b0e26d617e7b — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/b0e26d617e7bbe3051135285993bc55f718fea2f
github_commit

commit 65b8ea9d8304 (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit 65b8ea9d8304 — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/65b8ea9d8304b10f1d3bda5bcc82f9c682cf804c

Vendor Advisories for CVE-2026-75010(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
roundcube1.6.1+dfsg-1 ... 1.6.5+dfsg-1~deb12u1 (18 versions)
  • every version up to 1.6.5+dfsg-1+deb12u11: fixed in 1.6.5+dfsg-1+deb12u11
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
roundcube1.6.11+dfsg-1 ... 1.6.17+dfsg-1 (12 versions)
  • every version up to 1.6.18+dfsg-0+deb13u1: fixed in 1.6.18+dfsg-0+deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
roundcube1.6.11+dfsg-1 ... 1.6.17+dfsg-1 (7 versions)
  • every version up to 1.6.18+dfsg-1: fixed in 1.6.18+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 75× 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 133 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 21:50 UTCGHSA enrichment
  3. 2026-10-03 17:49 UTCEG score recompute
  4. 2026-10-03 17:49 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 15:46 UTCEG score recompute
  7. 2026-10-02 15:46 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-10-01 10:45 UTCEG score recompute
  10. 2026-10-01 10:45 UTCGHSA enrichment
  11. 2026-09-30 10:03 UTCEG score recompute
  12. 2026-09-30 10:02 UTCGHSA enrichment
  13. 2026-09-29 15:24 UTCEPSS rescore
  14. 2026-09-28 13:52 UTCEPSS rescore
  15. 2026-09-28 08:50 UTCEG score recompute
  16. 2026-09-28 08:50 UTCGHSA enrichment
  17. 2026-09-27 13:48 UTCEPSS rescore
  18. 2026-09-27 08:17 UTCEG score recompute
  19. 2026-09-27 08:17 UTCGHSA enrichment
  20. 2026-09-26 15:59 UTCEPSS rescore
  21. 2026-09-26 00:28 UTCEPSS rescore
  22. 2026-09-25 04:14 UTCEG score recompute
  23. 2026-09-25 04:14 UTCGHSA enrichment
  24. 2026-09-24 14:04 UTCEPSS rescore
  25. 2026-09-24 03:40 UTCEG score recompute
Show 75 more
  1. 2026-09-24 03:40 UTCGHSA enrichment
  2. 2026-09-23 17:54 UTCEPSS rescore
  3. 2026-09-23 03:06 UTCEG score recompute
  4. 2026-09-23 03:06 UTCGHSA enrichment
  5. 2026-09-22 16:01 UTCEPSS rescore
  6. 2026-09-22 02:33 UTCEG score recompute
  7. 2026-09-22 02:33 UTCGHSA enrichment
  8. 2026-09-21 21:09 UTCEPSS rescore
  9. 2026-09-21 01:59 UTCEG score recompute
  10. 2026-09-21 01:59 UTCGHSA enrichment
  11. 2026-09-20 20:16 UTCEPSS rescore
  12. 2026-09-20 01:26 UTCEG score recompute
  13. 2026-09-20 01:26 UTCGHSA enrichment
  14. 2026-09-19 00:52 UTCEG score recompute
  15. 2026-09-19 00:52 UTCGHSA enrichment
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-18 00:18 UTCEG score recompute
  18. 2026-09-18 00:18 UTCGHSA enrichment
  19. 2026-09-16 23:09 UTCEG score recompute
  20. 2026-09-16 23:09 UTCGHSA enrichment
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-16 05:15 UTCEPSS rescore
  23. 2026-09-15 21:28 UTCEG score recompute
  24. 2026-09-15 21:28 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
  26. 2026-09-14 20:53 UTCGHSA enrichment
  27. 2026-09-13 20:20 UTCEG score recompute
  28. 2026-09-13 20:20 UTCGHSA enrichment
  29. 2026-09-12 19:47 UTCEG score recompute
  30. 2026-09-12 19:47 UTCGHSA enrichment
  31. 2026-09-12 15:02 UTCEPSS rescore
  32. 2026-09-11 19:13 UTCEG score recompute
  33. 2026-09-11 19:13 UTCGHSA enrichment
  34. 2026-09-11 14:53 UTCEPSS rescore
  35. 2026-09-10 18:17 UTCEG score recompute
  36. 2026-09-10 18:17 UTCGHSA enrichment
  37. 2026-09-10 09:35 UTCEPSS rescore
  38. 2026-09-09 17:41 UTCEG score recompute
  39. 2026-09-09 17:41 UTCGHSA enrichment
  40. 2026-09-08 22:01 UTCEPSS rescore
  41. 2026-09-08 17:08 UTCEG score recompute
  42. 2026-09-08 17:07 UTCGHSA enrichment
  43. 2026-09-08 16:48 UTCNVD updateCVSS v3 → 4.3
  44. 2026-09-08 01:58 UTCEG score recompute
  45. 2026-09-08 01:58 UTCGHSA enrichment
  46. 2026-09-07 01:24 UTCEG score recompute
  47. 2026-09-07 01:24 UTCGHSA enrichment
  48. 2026-09-06 13:48 UTCEPSS rescore
  49. 2026-09-06 00:50 UTCEG score recompute
  50. 2026-09-06 00:50 UTCGHSA enrichment
  51. 2026-09-05 00:14 UTCEG score recompute
  52. 2026-09-05 00:14 UTCGHSA enrichment
  53. 2026-09-04 05:07 UTCEPSS rescore
  54. 2026-09-03 22:49 UTCGHSA enrichment
  55. 2026-09-02 22:10 UTCEG score recompute
  56. 2026-09-02 22:10 UTCGHSA enrichment
  57. 2026-09-02 14:12 UTCEPSS rescore
  58. 2026-09-01 21:10 UTCEG score recompute
  59. 2026-09-01 21:10 UTCGHSA enrichment
  60. 2026-09-01 13:54 UTCEPSS rescore
  61. 2026-09-01 07:19 UTCEG score recompute
  62. 2026-09-01 07:19 UTCGHSA enrichment
  63. 2026-09-01 04:40 UTCEPSS rescore
  64. 2026-09-01 04:40 UTCEPSS rescore
  65. 2026-08-31 06:45 UTCEG score recompute
  66. 2026-08-31 06:45 UTCGHSA enrichment
  67. 2026-08-30 19:18 UTCEPSS rescore
  68. 2026-08-30 19:17 UTCEPSS rescore
  69. 2026-08-30 06:12 UTCEG score recompute
  70. 2026-08-30 06:12 UTCGHSA enrichment
  71. 2026-08-30 01:22 UTCEPSS rescore
  72. 2026-08-29 05:39 UTCEG score recompute
  73. 2026-08-29 05:39 UTCGHSA enrichment
  74. 2026-08-28 21:42 UTCEPSS rescore
  75. 2026-08-27 19:59 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-75010?
CVE-2026-75010 is a medium vulnerability published on August 17, 2026. In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, the modoboa driver of the password plugin could leak a Modoboa API authentication token to a user-controlled host via crafted session data. This issue only affects Roundcube instances using the password plugin with its modoboa driver.
When was CVE-2026-75010 disclosed?
CVE-2026-75010 was first published on August 17, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75010 actively exploited?
CVE-2026-75010 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75010?
CVE-2026-75010 has a CVSS v3 base score of 4.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.4 (MEDIUM).
How do I remediate CVE-2026-75010?
An upstream fix for CVE-2026-75010 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-75010 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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