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CVE-2024-8883

Affected software6 products, listed below
Severity6.1 Medium CVSS 3.1 2 scores
Fixed in22.0.13, 24.0.8, 25.0.6
WeaknessCWE-601
Published19 Sep 2024
Updated4 Aug 2026

Description

A misconfiguration flaw was found in Keycloak. This issue can allow an attacker to redirect users to an arbitrary URL if a 'Valid Redirect URI' is set to http://localhost or http://127.0.0.1, enabling sensitive information such as authorization codes to be exposed to the attacker, potentially leading to session hijacking.

Exploitation status

Exploited

Real-world exploitation reported by VulnCheck KEV. CISA has not confirmed it.

  • CISA KEV not listed
  • VulnCheck KEV listed Exploitation reported in the wild. 2 citations · earliest 2026-01-08.
  • CISA Vulnrichment exploitation: none
  • Indexed PoC 1 indexed Published artifacts you can open, in Nuclei.
  • EPSS 2.1% chance in 30 days

VulnCheck KEV

Exploitation evidence from VulnCheck Known Exploited Vulnerabilities (VulnCheck KEV), used under VulnCheck's community terms. View CVE-2024-8883 in VulnCheck (free account).

EvidenceSourceDetailDate
Reported exploitation aws.amazon.com /blogs/security/real-time-malware-defense-leveraging-aws-network-firewall-active-threat-defense 2026-01-08
Reported exploitation labs.greynoise.io /grimoire/2026-01-24-weekly-oast-report 2026-01-24
IndexArtifactStarsFirst seen
Nuclei Keycloak - Open Redirect

Waratek protection

Mitigation candidate

A kind of vulnerability Waratek's rules address, with exploit code published or exploitation reported. No rule exists and none is planned yet. The decision below says what we found to build a rule from.

  • Protection none
  • Action unverified
  • Review automated Inferred
  • Record active
Decided by A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug
Finding A Red Hat Bugzilla ticket (https://bugzilla.redhat.com/show_bug.cgi?id=2312511) tracks the fix. That makes this CVE a candidate for an ARMR patch rule. No rule exists and none is scheduled: whether one can be derived depends on reading the upstream change the ticket links.
Candidate fix https://bugzilla.redhat.com/show_bug.cgi?id=2312511 : a Red Hat bug: the triage, which links onward to the fix

CVSS

6.1 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N secalert@redhat.com Secondary published
CVSS 3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N NVD Secondary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.keycloak:keycloak-services 0 22.0.13 unbounded
org.keycloak:keycloak-services 23.0.0 24.0.8 unbounded
org.keycloak:keycloak-services 25.0.0 25.0.6 unbounded

Products and versions

7 products, 14 version entries
SourceVendorProductSchemeAffected versions
osv org.keycloak keycloak-services generic < 22.0.13 · ≥ 23.0.0 and < 24.0.8 · ≥ 25.0.0 and < 25.0.6
nvd redhat build of keycloak generic any version
nvd redhat openshift container platform generic 4.11 · 4.12
nvd redhat openshift container platform for ibm z generic 4.9 · 4.10
nvd redhat openshift container platform for linuxone generic 4.9 · 4.10
nvd redhat openshift container platform for power generic 4.9 · 4.10
nvd redhat single sign-on generic any version · 7.6

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=2312511 bugzilla
https://github.com/keycloak/keycloak/security/advisories/GHSA-w8gr-xwp4-r9f7 WEB
https://github.com/keycloak/keycloak/releases/tag/25.0.6 WEB
https://github.com/keycloak/keycloak/blob/main/services/src/main/java/org/keycloak/protocol/oidc/utils/RedirectUtils.java WEB
https://github.com/keycloak/keycloak PACKAGE
https://access.redhat.com/security/cve/CVE-2024-8883 WEB
https://access.redhat.com/errata/RHSA-2024:8826 WEB
https://access.redhat.com/errata/RHSA-2024:8824 WEB
https://access.redhat.com/errata/RHSA-2024:8823 WEB
https://access.redhat.com/errata/RHSA-2024:6890 WEB

Timeline

Published2024-09-19By the CVE Program.
VulnCheck KEV: earliest evidence2026-01-08Date of the oldest evidence of exploitation in VulnCheck KEV's record. VulnCheck does not publish the date it listed the CVE.
VulnCheck KEV: latest evidence2026-01-24Date of the newest report, exploit reference or honeypot sighting in VulnCheck KEV's record.
NVD record modified2026-08-04NVD's own last-modified date for this record.