CVE-2026-27882

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% 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, secondary
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

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

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator (!==) to validate the webhook secret token. This implementation is vulnerable to timing attacks, which could allow an attacker to gradually discover the secret token by measuring response time differences. This vulnerability is fixed in 4.0.0-beta.461.

CVSS v3
4.8
EG Score
4.8(medium)
EG Risk
26(Track)
EG Risk 26/100SSVC: 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
Severity48% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

June 30, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 30, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Timing Attack in GitLab Webhook Token Validation · Advisory · coollabsio/coolify · GitHub

https://github.com/coollabsio/coolify/security/advisories/GHSA-x525-46rq-mr8c

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 33× 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 118 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-27882?
CVE-2026-27882 is a medium vulnerability published on June 30, 2026. Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.461, the GitLab webhook endpoint uses a non-constant-time string comparison operator (!==) to validate the webhook secret token. This implementation is vulnerable to timing…
When was CVE-2026-27882 disclosed?
CVE-2026-27882 was first published in the National Vulnerability Database on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27882 actively exploited?
CVE-2026-27882 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 86.0% of all scored CVEs.
What is the CVSS score of CVE-2026-27882?
CVE-2026-27882 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-27882?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27882, 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

Explore the affected products and dependency analysis for CVE-2026-27882

Explore →

Is Your Infrastructure Affected by CVE-2026-27882?

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

Start Free Scan →Browse All CVEs