synced 8 MIN AGO
01 Record

CVE-2026-81637

Replayable OAuth2 CSRF state retained after a failed callback in AshAuthentication

LowPUBLISHEDCNA: EEF
CNA base score2.3 CVSS v4.0CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
View raw JSON

02 Description

Replayable OAuth2 CSRF state retained after a failed callback in AshAuthentication

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.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.60% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 48.4% of scored records. A rank, not a probability.
NVD base score
2.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Deferred. NVD last modified this record on 2026-09-18.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

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
2026-09-17 13:09Z1 MO AGO
Last updated
2026-09-17 18:26Z1 MO AGO
Reserved
2026-09-11
Assigning CNA
EEF
Record state
PUBLISHED
Severity
Low (CVSS 2.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weaknesses
  • CWE-613Insufficient Session ExpirationBase
Data version
5.2
Document digest
6997ce012d7183a0602637a8db734480bb5e6a2f54b261a29587e5212a840dc0

05 Affected products

VendorProductVersionsPlatforms
team-alembicash_authentication0.6.0 to < 4.15.0, 5.0.0-rc.0 to < 5.0.0-rc.14, c5f589058e04239263f50a1430eb17ea6d5dd1a2 to < *—

06 References