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VulnerabilityPublished

CVE-2026-125320: pgedge-postgres-mcp · Origin Validation Error

Affects pgedge-postgres-mcpSource CVE Database V5

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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

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.15.3
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
pgEdgepgedge-postgres-mcpAffected
  • <1.1.0
Fixed in
  • 1.1.0

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

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