Acceptance of Extraneous Untrusted Data With Trusted Data Affecting dovecot-pgsql-debuginfo package, versions <1:2.3.20-1.amzn2023.0.4


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.24% (14th percentile)

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  • Snyk IDSNYK-AMZN2023-DOVECOTPGSQLDEBUGINFO-20245389
  • published29 Sept 2026
  • disclosed28 Aug 2026

Introduced: 28 Aug 2026

CVE-2026-42008  (opens in a new tab)
CWE-349  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 dovecot-pgsql-debuginfo to version 1:2.3.20-1.amzn2023.0.4 or higher.
This issue was patched in ALAS2023-2026-3109.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dovecot-pgsql-debuginfo package and not the dovecot-pgsql-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentication fields, so a value sent by that host can be injected as an internal authentication field. Any host permitted to act as a trusted proxy can authenticate as any user without knowing that user's password. This affects deployments whose password database honours a field that permits authentication without a password. Deployments that do not configure trusted proxies are not affected. Restrict the list of trusted proxy networks to hosts that are fully under your control. Update to non-vulnerable version. No publicly available exploits are known.

CVSS Base Scores

version 3.1