CVE-2026-125320: pgedge-postgres-mcp · Origin Validation Error
Affects pgedge-postgres-mcpSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 1.1.0 when convenient.
Data as of 10 Nov 2026, 17:49 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 5.3 |
|---|
- Patch
- Available – fixed in 1.1.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Upgrade pgedge-postgres-mcp to 1.1.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| pgEdgepgedge-postgres-mcp | Affected
| Fixed in
|
AI-suggested
Upgrade pgEdge pgedge-postgres-mcp to version 1.1.0 or later, where the Origin header validation issue is fixed. No other mitigations are indicated or necessary once the update is applied.
Description
CVE-2026-125320 is an origin validation error in pgEdge pgedge-postgres-mcp versions prior to 1.1.0. The HTTP transport did not validate the Origin header on incoming requests, enabling DNS rebinding attacks. An attacker could exploit this by luring a user to a malicious webpage, which could then access local PostgreSQL database schemas and query results if the HTTP transport was enabled on the same machine running a browser. This vulnerability is fixed in version 1.1.0.
References
- github.com/pgEdge/pgedge-postgres-mcp/security/advisories/GHSA-6hg5-9f3w-c886 (opens in a new tab)
- github.com/pgEdge/pgedge-postgres-mcp/issues/231 (opens in a new tab)
- github.com/pgEdge/pgedge-postgres-mcp/pull/232 (opens in a new tab)
- github.com/pgEdge/pgedge-postgres-mcp/commit/5571bd492a803e8f8831599c88b4619c5041fd8e (opens in a new tab)
- github.com/pgEdge/pgedge-postgres-mcp/releases/tag/v1.1.0 (opens in a new tab)