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CVE-2026-85788VulnerabilityPublished 09/09/2026

CVE-2026-85788: CWE-184 Incomplete list of disallowed inputs in AWS AWS Labs MySQL MCP Server

Affects AWS AWS Labs MySQL MCP ServerSource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium · patch available : update AWS Labs MySQL MCP Server when convenient.

Data as of 10/24/2026, 22:16:05 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
Exploitation

Not in CISA KEV, no exploitation reported

EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

What to do

Affected software

ProductAffectedFixed in
AWSAWS Labs MySQL MCP ServerAffected
  • <=1.0.21
Fixed in–
GitHubawslabs/mcppkg:github/awslabs/mcpOther threatsAffected
  • <=1.0.21
Fixed in–

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Description

Incomplete list of disallowed inputs in the mutable SQL detector component in Amazon awslabs mysql-mcp-server might allow context-dependent actors to bypass the read-only enforcement gate and reach file-read and file-write SQL sinks via SQL inline comments that the regex engine does not treat as whitespace. To remediate this issue, users should upgrade to version 1.0.23.

Weaknesses

Community reviews

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