CVE-2026-7507

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-19. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100CISA SSVC

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%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
1.1%
EPSS %ILE
64th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

May 19, 2026

Last Modified

October 6, 2026

Advisory Details (6)

Auto-updated Jun 11, 2026
Patch available. Sources: redhat.
redhat

2464145 – (CVE-2026-7507) CVE-2026-7507 org.keycloak/keycloak-services: Session fixation in OIDC login flow that can lead to account takeover

https://bugzilla.redhat.com/show_bug.cgi?id=2464145
redhatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-7507
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:19597
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:19596
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:19595
redhatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:19594

Vendor Advisories for CVE-2026-7507(10)

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

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrh-sso7-keycloak-0:18.0.20-1.redhat_00001.1.el8sso2026-10-06redhat
redhatkeycloak-services2026-10-05redhat
redhatrh-sso-7/sso76-openshift-rhel8:7.6-852026-10-05redhat
redhatrhbk/keycloak-rhel9-operator2026-05-20redhat
redhatrhbk/keycloak-rhel9-operator:26.2-212026-05-20redhat
redhatrhbk/keycloak-rhel9-operator:26.4-172026-05-20redhat

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

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.keycloak:keycloak-services1.0-alpha-1 ... 9.0.3 (226 versions)
  • every version up to 26.6.2: fixed in 26.6.2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 44× 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 261 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-7507?
CVE-2026-7507 is a high vulnerability published on May 19, 2026. A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which…
When was CVE-2026-7507 disclosed?
CVE-2026-7507 was first published on May 19, 2026, with the most recent update on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-7507 actively exploited?
CVE-2026-7507 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (64th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-7507?
CVE-2026-7507 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-7507?
A fix for CVE-2026-7507 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-7507 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-7507

Explore →

Is Your Infrastructure Affected by CVE-2026-7507?

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

Book a Demo →Browse All CVEs