CVE-2026-88952

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 ImpacttotalSuccessful exploitation gives total 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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.4% of scored records. A rank, not a probability.

NVD base score

9.1 (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:H/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 2026-09-18.

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.

Published

2026-09-17 14:15Z1 MO AGO

Last updated

2026-09-17 19:32Z1 MO AGO

Reserved

2026-09-16

Assigning CNA

EEF

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-287Improper AuthenticationClass

Data version

5.2

Document digest

7b8d2e2192c99e56ca94743a4c5f313c73601c75f1fc624305ee81e777f92329

• github.comGitHub Advisoryhttps://github.com/team-alembic/ash_authentication/security/advisories/GHSA-wc6x-276q-jrf9relatedvendor-advisory
• cna.erlef.orgEEF CNA record for CVE-2026-88952https://cna.erlef.org/cves/CVE-2026-88952.htmlrelated
• osv.devOSV record EEF-CVE-2026-88952https://osv.dev/vulnerability/EEF-CVE-2026-88952related
• github.comIntroducing commit 6453064 in team-alembic/ash_authenticationhttps://github.com/team-alembic/ash_authentication/commit/64530644f9b37ebb76ca14aeb83a77597a0034b7related
• github.comIntroducing commit 42edcd8 in team-alembic/ash_authenticationhttps://github.com/team-alembic/ash_authentication/commit/42edcd8ebb13fafbb168f12591d7518ce0611fecrelated
• github.comFix commit 738bf9f in team-alembic/ash_authenticationhttps://github.com/team-alembic/ash_authentication/commit/738bf9f32f2aa0d1bb92ce9ca5c2476cb5710459patch
• github.comFix commit 2bd630e in team-alembic/ash_authenticationhttps://github.com/team-alembic/ash_authentication/commit/2bd630eef8b7c8ae1e90e8fd43ba12fbc7e256bapatch