CVE-2026-26079

MEDIUMNVD 4.74.7—
EchelonGraph scoreMEDIUM confidence

Score 4.7 from GitHub Security Advisory published 2026-02-11. NVD baseline CVSS 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

A fix is available — apply it.

Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.

CVSS v3
4.7
EG Score
4.7(medium)
EG Risk
21(Track)
EG Risk 21/100SSVC: 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
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

February 11, 2026

Last Modified

June 17, 2026

Advisory Details (9)

Auto-updated Aug 9, 2026
Patch available. Sources: github_commit, github_release.
generic

Security updates 1.6.13 and 1.5.13 released

https://roundcube.net/news/2026/02/08/security-updates-1.6.13-and-1.5.13
github_release Patch Available

Roundcube Webmail 1.6.13

Patch available: roundcube/roundcubemail 1.6.13

https://github.com/roundcube/roundcubemail/releases/tag/1.6.13
github_release Patch Available

Roundcube Webmail 1.5.13

Patch available: roundcube/roundcubemail 1.5.13

https://github.com/roundcube/roundcubemail/releases/tag/1.5.13
github_commit

commit c15f5dbf093a (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit c15f5dbf093a — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/c15f5dbf093a497e19a749b20e7f8fb5a9c24cde
github_commit

commit bf89cbaa5897 (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit bf89cbaa5897 — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/bf89cbaa5897d8ad62e8057d9a3f6babb90b7954
github_commit

commit 5a3315cce587 (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit 5a3315cce587 — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/5a3315cce587e0be58335d11ff9a5571c90494a5
github_commit

commit 53d75d5dfebe (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit 53d75d5dfebe — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/53d75d5dfebef235a344d476b900c20c12d52b01
github_commit

commit 2b5625f1d2ef (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit 2b5625f1d2ef — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/2b5625f1d2ef7e050fd1ae481b2a52dc35466447
github_commit

commit 1f4c3a5af503 (roundcube/roundcubemail)

Fix landed in roundcube/roundcubemail commit 1f4c3a5af503 — awaiting tagged release

https://github.com/roundcube/roundcubemail/commit/1f4c3a5af5033747f9685a8a395dbd8228d19816

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubunturoundcube-sqlite3 (1.3.6+dfsg.1-1ubuntu0.1~esm8) @ bionic2026-06-12ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
roundcube1.4.11+dfsg.1-4 ... 1.4.15+dfsg.1-1~deb11u2~bpo10+1 (15 versions)1.4.15+dfsg.1-1+deb11u7—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
roundcube1.6.1+dfsg-1 ... 1.6.5+dfsg-1~deb12u1 (14 versions)1.6.5+dfsg-1+deb12u7—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
roundcube1.6.11+dfsg-1, 1.6.12+dfsg-0+deb13u1, 1.6.12+dfsg-11.6.13+dfsg-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
roundcube1.6.11+dfsg-1, 1.6.12+dfsg-11.6.13+dfsg-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 26× 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 197 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-26079?
CVE-2026-26079 is a medium vulnerability published on February 11, 2026. Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.
When was CVE-2026-26079 disclosed?
CVE-2026-26079 was first published in the National Vulnerability Database on February 11, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-26079 actively exploited?
CVE-2026-26079 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 76.8% of all scored CVEs.
What is the CVSS score of CVE-2026-26079?
CVE-2026-26079 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2026-26079?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-26079, 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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