01 Record
CVE-2026-2575
Keycloak: keycloak: denial of service due to excessive samlrequest decompression
MediumPUBLISHEDCNA: redhat
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
02 Description
Keycloak: keycloak: denial of service due to excessive samlrequest decompression
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.64% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 50.7% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-06.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-03-18 03:19Z7 MO AGO
- Last updated
- 2026-10-06 17:28Z23 DAYS AGO
- Reserved
- 2026-02-16
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-409Improper Handling of Highly Compressed Data (Data Amplification)Base
- Data version
- 5.2
- Document digest
- 1131cf99a1403c57490f49f40ba6d935f4942969547aa38c6ab2e294b17ecb68
05 Affected products
VendorProductVersionsPlatforms
06 References
- access.redhat.comRHSA-2026:3947https://access.redhat.com/errata/RHSA-2026:3947
- access.redhat.comRHSA-2026:3948https://access.redhat.com/errata/RHSA-2026:3948
- access.redhat.comRHSA-2026:76128https://access.redhat.com/errata/RHSA-2026:76128
- access.redhat.comRHSA-2026:76129https://access.redhat.com/errata/RHSA-2026:76129
- access.redhat.comRHSA-2026:76130https://access.redhat.com/errata/RHSA-2026:76130
- access.redhat.comRHSA-2026:76132https://access.redhat.com/errata/RHSA-2026:76132
- access.redhat.comRHSA-2026:76134https://access.redhat.com/errata/RHSA-2026:76134
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-2575
- bugzilla.redhat.comRHBZ#2440149https://bugzilla.redhat.com/show_bug.cgi?id=2440149