CVE-2024-8698: Improper Verification of Cryptographic Signature
Source CVE Database V5
Not known to be exploited · public detection template (Nuclei) · CVSS 7.7 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 2.0% chance of exploitation in 30 days – higher than 80% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 19 Sep 2024
Detectable: evidence found.
nuclei template: Keycloak - SAML Core Package Signature Validation Flaw
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
AI-suggested
Red Hat has released updated Red Hat Single Sign-On 7.6.11 packages for RHEL 7 and RHEL 8 that fix this vulnerability. Users should apply these official security updates to remediate the issue. Before applying the update, ensure all previously released errata relevant to the system have been applied. Refer to Red Hat's official advisories and update instructions for detailed guidance.
Description
A flaw exists in the SAML signature validation method within the Keycloak XMLSignatureUtil class. The method incorrectly determines whether a SAML signature is for the full document or only for specific assertions based on the position of the signature in the XML document, rather than the Reference element used to specify the signed element. This flaw allows attackers to create crafted responses that can bypass the validation, potentially leading to privilege escalation or impersonation attacks.
References
- access.redhat.com/errata/RHSA-2024:6878 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6879 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6880 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6882 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6886 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6887 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6888 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6889 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:6890 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:8823 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:8824 (opens in a new tab)
- access.redhat.com/errata/RHSA-2024:8826 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2024-8698 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2311641 (opens in a new tab)