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

Quick assessment

Affected
SigNoz signoz
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 SigNoz v0.98.0 至 v0.143.0（不含 v0.143.0）版本中，若配置使用不透明会话令牌（Opaque Session Tokenizer）（在 v0.143.0 之前该机制并非默认设置），则在以下两种情况下不会撤销用户现有的登录会话： 1. 用户使用重置令牌重置密码时（调用 ，可通过 接口访问）； 2. 用户被删除时（调用 ，可通过 接口访问）。 上述两种代码路径均未调用令牌器的 方法，导致缓存的令牌和身份信息仍保留在系统中。 攻击者若已持有该账户的会话令牌（例如从被盗用的浏览器会话中获取

CVSS 6.8 · Medium EPSS 0.35% · P26

Affected Version Matrix 2

VendorProduct Version RangeStatus
SigNoz signoz 0.98.0< 0.143.0 affected
0.143.0 unaffected
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I. Basic Information for CVE-2026-97056

Vulnerability Information
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Vulnerability Title
SigNoz before 0.143.0 Insufficient Session Expiration Authentication Bypass
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的会话过期机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SigNoz signoz 0.98.0 ~ 0.143.0 -

II. Public POCs for CVE-2026-97056

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III. Intelligence Information for CVE-2026-97056

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Patches & Fixes for CVE-2026-97056 (4)

Vendor Advisories for CVE-2026-97056 (2)

IV. Related Vulnerabilities

Same product: signoz
Same vendor: SigNoz
Same weakness: CWE-613

V. Comments for CVE-2026-97056

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