synced 12 MIN AGO
01 Record

CVE-2026-75757

AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a sibling subdomain

HighPUBLISHEDCNA: EEF
CNA base score8.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
View raw JSON

02 Description

AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a sibling subdomain

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • 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
0.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 44.1% of scored records. A rank, not a probability.
NVD base score
8.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/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 2026-09-01.
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
2026-08-31 02:20Z1 MO AGO
Last updated
2026-08-31 14:50Z1 MO AGO
Reserved
2026-08-30
Assigning CNA
EEF
Record state
PUBLISHED
Severity
High (CVSS 8.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
Weaknesses
  • CWE-565Reliance on Cookies without Validation and Integrity CheckingBase
Data version
5.2
Document digest
c90dab31efcc8317a67daa514eb05c1ba6b4395e8e23162c770fdcb7425512fb

05 Affected products

VendorProductVersionsPlatforms
ash-projectash_admin0.9.1 to < 1.3.1, 77a43cc4fa04cb59c38fc434568a35a38ecb995a to < e93a3408a85035e1f90275d02bc2470c96095e56—

06 References