CVE-2026-27018

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.7%, top 25% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

Gotenberg is an API for converting document formats. Prior to version 8.29.0, the fix introduced for CVE-2024-21527 can be bypassed using mixed-case or uppercase URL schemes. This issue has been patched in version 8.29.0.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
76%
KEV
Not listed

Published

March 30, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 2, 2026
Patch available. Sources: github_commit, github_release, github.
github Patch Available

Chromium deny-list bypass via case-insensitive URL scheme (bypass of GHSA-rh2x-ccvw-q7r3) · Advisory · gotenberg/gotenberg · GitHub

https://github.com/gotenberg/gotenberg/security/advisories/GHSA-jjwv-57xh-xr6r
github_release Patch Available

8.29.0

Patch available: gotenberg/gotenberg v8.29.0

https://github.com/gotenberg/gotenberg/releases/tag/v8.29.0
github_commit Patch Available

commit 8625a4e899eb (gotenberg/gotenberg)

Patch available: gotenberg/gotenberg v8.29.0 (contains commit 8625a4e899eb)

https://github.com/gotenberg/gotenberg/commit/8625a4e899eb75e6fcf46d28394334c7fd79fff5
github_commit Patch Available

commit 06b2b2e10c52 (gotenberg/gotenberg)

Patch available: gotenberg/gotenberg v8.29.0 (contains commit 06b2b2e10c52)

https://github.com/gotenberg/gotenberg/commit/06b2b2e10c52b58135edbfe82e94d599eb0c5a11

Affected Packages

(2 across 1 ecosystem)
Go(2)
PackageVulnerable rangeFixed inDependents
github.com/gotenberg/gotenberg/v7———
github.com/gotenberg/gotenberg/v8—8.29.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 27× 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 179 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-27018?
CVE-2026-27018 is a high vulnerability published on March 30, 2026. Gotenberg is an API for converting document formats. Prior to version 8.29.0, the fix introduced for CVE-2024-21527 can be bypassed using mixed-case or uppercase URL schemes. This issue has been patched in version 8.29.0.
When was CVE-2026-27018 disclosed?
CVE-2026-27018 was first published in the National Vulnerability Database on March 30, 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-2026-27018 actively exploited?
CVE-2026-27018 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 24.1% of all scored CVEs.
What is the CVSS score of CVE-2026-27018?
CVE-2026-27018 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-27018?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27018, 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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