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%CVSS: 4.3Exploit: None knownExposed: 0

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

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
6.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

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 rangeFixed inDependents
roundcube1.6.1+dfsg-1 ... 1.6.5+dfsg-1~deb12u1 (18 versions)1.6.5+dfsg-1+deb12u11—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
roundcube1.6.11+dfsg-1 ... 1.6.17+dfsg-1 (12 versions)1.6.18+dfsg-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
roundcube1.6.11+dfsg-1 ... 1.6.17+dfsg-1 (7 versions)1.6.18+dfsg-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 84× 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. 2026-09-19 00:52 UTCEG score recompute
  2. 2026-09-19 00:52 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 00:18 UTCEG score recompute
  5. 2026-09-18 00:18 UTCGHSA enrichment
  6. 2026-09-16 23:09 UTCEG score recompute
  7. 2026-09-16 23:09 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 21:28 UTCEG score recompute
  11. 2026-09-15 21:28 UTCGHSA enrichment
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-14 20:53 UTCGHSA enrichment
  14. 2026-09-13 20:20 UTCEG score recompute
  15. 2026-09-13 20:20 UTCGHSA enrichment
  16. 2026-09-12 19:47 UTCEG score recompute
  17. 2026-09-12 19:47 UTCGHSA enrichment
  18. 2026-09-12 15:02 UTCEPSS rescore
  19. 2026-09-11 19:13 UTCEG score recompute
  20. 2026-09-11 19:13 UTCGHSA enrichment
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-10 18:17 UTCEG score recompute
  23. 2026-09-10 18:17 UTCGHSA enrichment
  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-09 17:41 UTCEG score recompute
Show 70 more
  1. 2026-09-09 17:41 UTCGHSA enrichment
  2. 2026-09-08 22:01 UTCEPSS rescore
  3. 2026-09-08 17:08 UTCEG score recompute
  4. 2026-09-08 17:07 UTCGHSA enrichment
  5. 2026-09-08 16:48 UTCNVD updateCVSS v3 → 4.3
  6. 2026-09-08 01:58 UTCEG score recompute
  7. 2026-09-08 01:58 UTCGHSA enrichment
  8. 2026-09-07 01:24 UTCEG score recompute
  9. 2026-09-07 01:24 UTCGHSA enrichment
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-06 00:50 UTCEG score recompute
  12. 2026-09-06 00:50 UTCGHSA enrichment
  13. 2026-09-05 00:14 UTCEG score recompute
  14. 2026-09-05 00:14 UTCGHSA enrichment
  15. 2026-09-04 05:07 UTCEPSS rescore
  16. 2026-09-03 22:49 UTCGHSA enrichment
  17. 2026-09-02 22:10 UTCEG score recompute
  18. 2026-09-02 22:10 UTCGHSA enrichment
  19. 2026-09-02 14:12 UTCEPSS rescore
  20. 2026-09-01 21:10 UTCEG score recompute
  21. 2026-09-01 21:10 UTCGHSA enrichment
  22. 2026-09-01 13:54 UTCEPSS rescore
  23. 2026-09-01 07:19 UTCEG score recompute
  24. 2026-09-01 07:19 UTCGHSA enrichment
  25. 2026-09-01 04:40 UTCEPSS rescore
  26. 2026-09-01 04:40 UTCEPSS rescore
  27. 2026-08-31 06:45 UTCEG score recompute
  28. 2026-08-31 06:45 UTCGHSA enrichment
  29. 2026-08-30 19:18 UTCEPSS rescore
  30. 2026-08-30 19:17 UTCEPSS rescore
  31. 2026-08-30 06:12 UTCEG score recompute
  32. 2026-08-30 06:12 UTCGHSA enrichment
  33. 2026-08-30 01:22 UTCEPSS rescore
  34. 2026-08-29 05:39 UTCEG score recompute
  35. 2026-08-29 05:39 UTCGHSA enrichment
  36. 2026-08-28 21:42 UTCEPSS rescore
  37. 2026-08-27 19:59 UTCEG score recompute
  38. 2026-08-27 19:59 UTCGHSA enrichment
  39. 2026-08-27 14:25 UTCEPSS rescore
  40. 2026-08-26 19:26 UTCEG score recompute
  41. 2026-08-26 19:26 UTCGHSA enrichment
  42. 2026-08-26 14:47 UTCEPSS rescore
  43. 2026-08-25 18:51 UTCEG score recompute
  44. 2026-08-25 18:51 UTCGHSA enrichment
  45. 2026-08-25 13:49 UTCEPSS rescore
  46. 2026-08-24 18:18 UTCEG score recompute
  47. 2026-08-24 18:18 UTCGHSA enrichment
  48. 2026-08-24 14:18 UTCEPSS rescore
  49. 2026-08-23 17:45 UTCEG score recompute
  50. 2026-08-23 17:45 UTCGHSA enrichment
  51. 2026-08-23 00:19 UTCEPSS rescore
  52. 2026-08-22 17:12 UTCEG score recompute
  53. 2026-08-22 17:12 UTCGHSA enrichment
  54. 2026-08-21 23:49 UTCEPSS rescore
  55. 2026-08-21 16:39 UTCEG score recompute
  56. 2026-08-21 16:39 UTCGHSA enrichment
  57. 2026-08-20 22:56 UTCEPSS rescore
  58. 2026-08-20 16:06 UTCEG score recompute
  59. 2026-08-20 16:06 UTCGHSA enrichment
  60. 2026-08-19 17:04 UTCEPSS rescore
  61. 2026-08-19 15:32 UTCGHSA enrichment
  62. 2026-08-18 14:56 UTCEG score recompute
  63. 2026-08-18 14:56 UTCGHSA enrichment
  64. 2026-08-18 13:49 UTCEPSS rescore
  65. 2026-08-18 13:49 UTCEPSS rescore
  66. 2026-08-17 14:22 UTCEG score recompute
  67. 2026-08-17 14:17 UTCEG score recompute
  68. 2026-08-17 13:30 UTCEG score recompute
  69. 2026-08-17 13:16 UTCEG score recompute
  70. 2026-08-17 13:16 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 78.7% of all 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.
How do I remediate CVE-2026-75010?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75010, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-75010

Explore →

Is Your Infrastructure Affected by CVE-2026-75010?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs