CVE-2026-76238Network attack vector

Cross-tenant fact deletion via unscoped decay queries

Published Aug 19, 2026 · Updated Aug 25, 2026

Incorrect authorization in Stigmem Node before 0.9.0a12 allows remote authenticated users to expire or count other tenants' facts. The lifecycle/decay.py candidate selectors omit a tenant_id predicate, and the decay route and worker do not pass the caller's tenant into the sweep. Exploitation requires a write credential and the opt-in multi-tenant plugin; ttl_seconds=0 expires other tenants' facts, while dry_run discloses their aggregate count.

CVSS severity7.2
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Stigmem Node before 0.9.0a12 allows remote authenticated users to expire or count other tenants' facts. The lifecycle/decay.py candidate selectors omit a tenant_id predicate, and the decay route and worker do not pass the caller's tenant into the sweep. Exploitation requires a write credential and the opt-in multi-tenant plugin; ttl_seconds=0 expires other tenants' facts, while dry_run discloses their aggregate count.

The record

CVE
CVE-2026-76238
Published
Aug 19, 2026
Updated
Aug 25, 2026
Vendor
Eidetic Labs
Product
Stigmem Node
Classifications
CWE-863, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.9.0a12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Eidetic Labs · Stigmem Nodeversion=0 <0.9.0a12

Published CVSS scores

7.2VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1485Data Destruction

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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