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CVE-2026-126943 Zipline 4.2.0 before 4.6.2 OAuth2 Client Secret Leakage in Startup Logs

6.9 mediumEPSS 0.4%

Medium (6.9) in diced zipline. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.

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Zipline from 4.2.0 before 4.6.2 contains an information disclosure vulnerability that logs sensitive environment variable values, such as OAUTH_OIDC_CLIENT_SECRET, without redaction at startup. Attackers with access to system journal or docker logs can obtain OAuth2 client secrets and use them to exchange intercepted OAuth2 callbacks for valid tokens.

Severity

CVSS 4.0

6.9 medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.9 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS
0.4% estimated probability of exploitation activity in the next 30 days; 37th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CWE
CWE-532 Insertion of Sensitive Information into Log File
OWASP Top 10
A09:2025 Logging & Alerting Failures
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
diced ziplinefrom 4.2.0 before 4.6.2

Attack patterns (CAPEC)

  • CAPEC-215 Fuzzing for application mapping Likelihood: High · Severity: Low

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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