Incorrect Authorization vulnerability in ash-project ashpostgres allows a user to load destination records linked to a source record only…
CVE-2026-115627
Incorrect Authorization vulnerability in ash-project ashpostgres allows a user to load destination records linked to a source record only through another tenant's join rows. When a manytomany relationship, or a through relationship, is loaded with a lateral join (for example with a per-record limit or sort), AshPostgres.DataLayer builds the query for the join resource, and for each resource along a through path, in lateraljoinquery/3 and throughstepqueries/4 without running that resource's read action, which is where attribute multitenancy is applied. When those resources use strategy :attribute multitenancy, rows belonging to other tenants were joined, so the load returned destination records that the caller's tenant is not related to. This issue affects ashpostgres: from 0.38.0 before 2.15.2.
Assessment
- CVSS
- 6 (v4.0)
- Severity
- Medium
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 25 October 2026
- Last updated
- 26 October 2026
- Weakness
- CWE-863
- Assigner
- 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/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
At the source
References
- https://cna.erlef.org/cves/CVE-2026-115627.html
- https://github.com/ash-project/ash/security/advisories/GHSA-gr2r-f49c-9gm2
- https://github.com/ash-project/ash_postgres/commit/7115bec58678f13b1ac2fb4822a0ba1aea9dbec5
- https://github.com/ash-project/ash_postgres/commit/8c25c945c39a45299193fe70b09fc2fa2aacac7b
- https://osv.dev/vulnerability/EEF-CVE-2026-115627
Query this programmatically
Agents can read this through the MCP endpoint, or over HTTP:
curl https://cve.zerocrew.in/api/cve/CVE-2026-115627