CVE-2026-75000

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

Score 5.8 from GitHub Security Advisory published 2026-08-17. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: 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, improper HTML/CSS sanitization of the SVG animate "by" attribute may lead to remote image blocking bypass, which in turn may lead to information disclosure or privilege escalation.

CVSS v3
5.8
EG Score
5.8(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity58% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 17, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Aug 17, 2026
Patch available. Sources: github_release.
github_release Patch Available

Roundcube Webmail 1.7.3

Patch available: roundcube/roundcubemail 1.7.3

https://github.com/roundcube/roundcubemail/releases/tag/1.7.3
github_release Patch Available

Roundcube Webmail 1.6.18

Patch available: roundcube/roundcubemail 1.6.18

https://github.com/roundcube/roundcubemail/releases/tag/1.6.18
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

Vendor Advisories for CVE-2026-75000(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 20× 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. 2026-09-18 23:50 UTCEG score recompute
  2. 2026-09-18 23:50 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 01:44 UTCEG score recompute
  5. 2026-09-18 01:44 UTCGHSA enrichment
  6. 2026-09-17 03:44 UTCEG score recompute
  7. 2026-09-17 03:44 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-16 04:55 UTCGHSA enrichment
  11. 2026-09-15 06:43 UTCEG score recompute
  12. 2026-09-15 06:43 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-14 08:44 UTCEG score recompute
  15. 2026-09-14 08:44 UTCGHSA enrichment
  16. 2026-09-13 10:44 UTCEG score recompute
  17. 2026-09-13 10:44 UTCGHSA enrichment
  18. 2026-09-12 15:02 UTCEPSS rescore
  19. 2026-09-12 12:45 UTCEG score recompute
  20. 2026-09-12 12:45 UTCGHSA enrichment
  21. 2026-09-11 14:53 UTCEPSS rescore
  22. 2026-09-11 14:46 UTCEG score recompute
  23. 2026-09-11 14:46 UTCGHSA enrichment
  24. 2026-09-10 16:46 UTCEG score recompute
  25. 2026-09-10 16:46 UTCGHSA enrichment
Show 75 more
  1. 2026-09-10 09:35 UTCEPSS rescore
  2. 2026-09-09 18:05 UTCEG score recompute
  3. 2026-09-09 18:05 UTCGHSA enrichment
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-08 20:05 UTCGHSA enrichment
  6. 2026-09-07 16:11 UTCEG score recompute
  7. 2026-09-07 16:11 UTCGHSA enrichment
  8. 2026-09-06 15:06 UTCEG score recompute
  9. 2026-09-06 15:05 UTCGHSA enrichment
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-05 17:05 UTCEG score recompute
  12. 2026-09-05 17:04 UTCGHSA enrichment
  13. 2026-09-04 19:04 UTCEG score recompute
  14. 2026-09-04 19:04 UTCGHSA enrichment
  15. 2026-09-04 05:07 UTCEPSS rescore
  16. 2026-09-03 20:14 UTCGHSA enrichment
  17. 2026-09-02 22:11 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 04:40 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-08-31 23:36 UTCGHSA enrichment
  26. 2026-08-31 01:37 UTCEG score recompute
  27. 2026-08-31 01:37 UTCGHSA enrichment
  28. 2026-08-30 19:18 UTCEPSS rescore
  29. 2026-08-30 19:17 UTCEPSS rescore
  30. 2026-08-30 03:38 UTCEG score recompute
  31. 2026-08-30 03:38 UTCGHSA enrichment
  32. 2026-08-30 01:22 UTCEPSS rescore
  33. 2026-08-29 05:39 UTCEG score recompute
  34. 2026-08-29 05:39 UTCGHSA enrichment
  35. 2026-08-28 21:42 UTCEPSS rescore
  36. 2026-08-28 06:27 UTCEG score recompute
  37. 2026-08-28 06:27 UTCGHSA enrichment
  38. 2026-08-27 14:25 UTCEPSS rescore
  39. 2026-08-27 08:26 UTCEG score recompute
  40. 2026-08-27 08:26 UTCGHSA enrichment
  41. 2026-08-26 14:47 UTCEPSS rescore
  42. 2026-08-26 10:25 UTCEG score recompute
  43. 2026-08-26 10:24 UTCGHSA enrichment
  44. 2026-08-25 13:49 UTCEPSS rescore
  45. 2026-08-25 12:23 UTCEG score recompute
  46. 2026-08-25 12:23 UTCGHSA enrichment
  47. 2026-08-24 14:18 UTCEPSS rescore
  48. 2026-08-24 14:16 UTCEG score recompute
  49. 2026-08-24 14:16 UTCGHSA enrichment
  50. 2026-08-23 16:17 UTCEG score recompute
  51. 2026-08-23 16:17 UTCGHSA enrichment
  52. 2026-08-23 00:19 UTCEPSS rescore
  53. 2026-08-22 18:18 UTCEG score recompute
  54. 2026-08-22 18:18 UTCGHSA enrichment
  55. 2026-08-21 23:49 UTCEPSS rescore
  56. 2026-08-21 20:19 UTCEG score recompute
  57. 2026-08-21 20:19 UTCGHSA enrichment
  58. 2026-08-20 22:56 UTCEPSS rescore
  59. 2026-08-20 22:20 UTCGHSA enrichment
  60. 2026-08-20 00:21 UTCEG score recompute
  61. 2026-08-20 00:21 UTCGHSA enrichment
  62. 2026-08-19 17:04 UTCEPSS rescore
  63. 2026-08-19 02:21 UTCEG score recompute
  64. 2026-08-19 02:21 UTCGHSA enrichment
  65. 2026-08-18 13:49 UTCEPSS rescore
  66. 2026-08-18 13:49 UTCEPSS rescore
  67. 2026-08-18 04:21 UTCEG score recompute
  68. 2026-08-18 04:21 UTCGHSA enrichment
  69. 2026-08-18 04:07 UTCEG score recompute
  70. 2026-08-18 04:07 UTCGHSA enrichment
  71. 2026-08-17 15:20 UTCEG score recompute
  72. 2026-08-17 14:44 UTCEG score recompute
  73. 2026-08-17 13:30 UTCEG score recompute
  74. 2026-08-17 12:56 UTCEG score recompute
  75. 2026-08-17 12:56 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-75000?
CVE-2026-75000 is a medium vulnerability published on August 17, 2026. In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, improper HTML/CSS sanitization of the SVG animate "by" attribute may lead to remote image blocking bypass, which in turn may lead to information disclosure or privilege escalation.
When was CVE-2026-75000 disclosed?
CVE-2026-75000 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-2026-75000 actively exploited?
CVE-2026-75000 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 71.8% of all scored CVEs.
What is the CVSS score of CVE-2026-75000?
CVE-2026-75000 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-75000?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75000, 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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