CVE-2026-57303

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Jenkins Assembla Plugin 1.4 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers able to control the responses of the configured Assembla server to extract secrets from the Jenkins controller or perform server-side request forgery.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 25, 2026

Advisory Details (1)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

Jenkins Security Advisory 2026-06-24

https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3692%20(1)

Vendor Advisories for CVE-2026-57303(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 86× 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. 2026-07-26 15:43 UTCEG score recompute
  2. 2026-07-26 15:43 UTCGHSA enrichment
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-25 14:18 UTCEPSS rescore
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-24 14:18 UTCEPSS rescore
  8. 2026-07-24 14:18 UTCEPSS rescore
  9. 2026-07-23 14:18 UTCEPSS rescore
  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 03:20 UTCEG score recompute
  12. 2026-07-22 14:08 UTCEPSS rescore
  13. 2026-07-21 15:25 UTCEPSS rescore
  14. 2026-07-20 17:08 UTCEPSS rescore
  15. 2026-07-19 14:31 UTCEPSS rescore
  16. 2026-07-19 14:31 UTCEPSS rescore
  17. 2026-07-19 02:29 UTCEPSS rescore
  18. 2026-07-18 10:04 UTCEPSS rescore
  19. 2026-07-17 00:15 UTCGHSA enrichment
  20. 2026-07-16 17:03 UTCEPSS rescore
  21. 2026-07-16 11:36 UTCGHSA enrichment
  22. 2026-07-15 22:58 UTCGHSA enrichment
  23. 2026-07-15 16:57 UTCEPSS rescore
  24. 2026-07-15 16:57 UTCEPSS rescore
  25. 2026-07-15 10:19 UTCGHSA enrichment
Show 69 more
  1. 2026-07-15 02:00 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-14 21:40 UTCGHSA enrichment
  4. 2026-07-14 09:02 UTCGHSA enrichment
  5. 2026-07-13 22:31 UTCEPSS rescore
  6. 2026-07-13 20:22 UTCGHSA enrichment
  7. 2026-07-13 07:44 UTCGHSA enrichment
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-13 06:13 UTCEPSS rescore
  10. 2026-07-12 19:06 UTCGHSA enrichment
  11. 2026-07-12 06:28 UTCGHSA enrichment
  12. 2026-07-12 05:46 UTCEPSS rescore
  13. 2026-07-11 17:50 UTCGHSA enrichment
  14. 2026-07-11 08:27 UTCEPSS rescore
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-11 05:12 UTCGHSA enrichment
  17. 2026-07-10 16:32 UTCGHSA enrichment
  18. 2026-07-10 03:53 UTCGHSA enrichment
  19. 2026-07-09 19:10 UTCEPSS rescore
  20. 2026-07-09 19:10 UTCEPSS rescore
  21. 2026-07-09 15:13 UTCGHSA enrichment
  22. 2026-07-09 02:33 UTCGHSA enrichment
  23. 2026-07-08 15:16 UTCEPSS rescore
  24. 2026-07-08 15:16 UTCEPSS rescore
  25. 2026-07-08 13:54 UTCGHSA enrichment
  26. 2026-07-08 01:17 UTCGHSA enrichment
  27. 2026-07-07 13:46 UTCEPSS rescore
  28. 2026-07-07 13:46 UTCEPSS rescore
  29. 2026-07-07 12:39 UTCGHSA enrichment
  30. 2026-07-06 23:59 UTCGHSA enrichment
  31. 2026-07-06 16:27 UTCEPSS rescore
  32. 2026-07-06 16:27 UTCEPSS rescore
  33. 2026-07-06 11:21 UTCGHSA enrichment
  34. 2026-07-06 02:23 UTCEPSS rescore
  35. 2026-07-06 02:23 UTCEPSS rescore
  36. 2026-07-05 22:27 UTCGHSA enrichment
  37. 2026-07-05 09:49 UTCGHSA enrichment
  38. 2026-07-05 02:31 UTCEPSS rescore
  39. 2026-07-05 02:30 UTCEPSS rescore
  40. 2026-07-04 21:10 UTCGHSA enrichment
  41. 2026-07-04 08:31 UTCGHSA enrichment
  42. 2026-07-04 06:31 UTCEPSS rescore
  43. 2026-07-04 06:31 UTCEPSS rescore
  44. 2026-07-03 19:53 UTCGHSA enrichment
  45. 2026-07-03 07:15 UTCGHSA enrichment
  46. 2026-07-02 18:37 UTCGHSA enrichment
  47. 2026-07-02 05:59 UTCGHSA enrichment
  48. 2026-07-01 17:20 UTCGHSA enrichment
  49. 2026-07-01 15:07 UTCEPSS rescore
  50. 2026-07-01 04:42 UTCGHSA enrichment
  51. 2026-06-30 23:22 UTCEPSS rescore
  52. 2026-06-30 16:04 UTCGHSA enrichment
  53. 2026-06-30 03:24 UTCGHSA enrichment
  54. 2026-06-29 14:47 UTCGHSA enrichment
  55. 2026-06-29 14:06 UTCEPSS rescore
  56. 2026-06-29 02:09 UTCGHSA enrichment
  57. 2026-06-28 14:07 UTCEPSS rescore
  58. 2026-06-28 13:31 UTCGHSA enrichment
  59. 2026-06-28 04:56 UTCEPSS rescore
  60. 2026-06-28 00:54 UTCGHSA enrichment
  61. 2026-06-27 12:16 UTCGHSA enrichment
  62. 2026-06-27 03:08 UTCEPSS rescore
  63. 2026-06-26 23:38 UTCGHSA enrichment
  64. 2026-06-26 11:01 UTCGHSA enrichment
  65. 2026-06-25 17:20 UTCGHSA enrichment
  66. 2026-06-25 13:49 UTCEPSS rescore
  67. 2026-06-25 04:41 UTCGHSA enrichment
  68. 2026-06-24 16:02 UTCEG score recompute
  69. 2026-06-24 16:02 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57303?
CVE-2026-57303 is a high vulnerability published on June 24, 2026. Jenkins Assembla Plugin 1.4 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers able to control the responses of the configured Assembla server to extract secrets from the Jenkins controller or perform server-side request forgery.
When was CVE-2026-57303 disclosed?
CVE-2026-57303 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57303 actively exploited?
CVE-2026-57303 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 86.9% of all scored CVEs.
What is the CVSS score of CVE-2026-57303?
CVE-2026-57303 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-57303?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57303, 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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