CVE-2026-19363

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-08-09. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was found in lmammino oidc-authorizer up to 0.4.0. Impacted is an unknown function of the file src/handler.rs of the component Lambda Authorizer. The manipulation results in sensitive information in log files. The attack can be executed remotely. src/handler.rs logs raw Authorization header values and complete bearer tokens/JWTs on authentication failure paths, potentially exposing credentials through CloudWatch Logs. src/models.rs serializes the complete validated JWT claims set with serde_json::to_string(token_claims).unwrap() and propagates it through context["jwtClaims"] to downstream integrations. This code performs serialization, not deserialization, and does not process attacker-controlled jwtClaims input. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
24(Track)
EG Risk 24/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

August 9, 2026

Last Modified

August 12, 2026

References (4)

Vendor Advisories for CVE-2026-19363(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(4)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 08:38 UTCEG score recompute
  3. 2026-08-20 08:38 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 10:12 UTCEG score recompute
  6. 2026-08-19 10:12 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 11:39 UTCEG score recompute
  9. 2026-08-18 11:39 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 13:13 UTCEG score recompute
  12. 2026-08-17 13:13 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 14:48 UTCEG score recompute
  15. 2026-08-16 14:48 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 16:22 UTCEG score recompute
  18. 2026-08-15 16:22 UTCGHSA enrichment
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 17:55 UTCEG score recompute
  21. 2026-08-14 17:55 UTCGHSA enrichment
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-13 19:29 UTCGHSA enrichment
  24. 2026-08-12 21:03 UTCEG score recompute
  25. 2026-08-12 21:03 UTCGHSA enrichment
Show 21 more
  1. 2026-08-12 13:50 UTCEPSS rescore
  2. 2026-08-12 01:48 UTCEG score recompute
  3. 2026-08-12 01:48 UTCGHSA enrichment
  4. 2026-08-11 13:42 UTCEPSS rescore
  5. 2026-08-11 03:22 UTCEG score recompute
  6. 2026-08-11 03:22 UTCGHSA enrichment
  7. 2026-08-11 03:22 UTCNVD updateCVSS v4 → 5.5
  8. 2026-08-11 02:19 UTCEG score recompute
  9. 2026-08-11 02:18 UTCGHSA enrichment
  10. 2026-08-11 02:18 UTCMITRE cvelistV5CVSS v4 → 6.9
  11. 2026-08-11 00:00 UTCEPSS rescore
  12. 2026-08-10 10:17 UTCEG score recompute
  13. 2026-08-10 10:17 UTCGHSA enrichment
  14. 2026-08-10 10:17 UTCNVD updateCVSS v4 → 5.5
  15. 2026-08-10 10:01 UTCEG score recompute
  16. 2026-08-10 10:01 UTCGHSA enrichment
  17. 2026-08-10 10:01 UTCMITRE cvelistV5CVSS v4 → 6.9
  18. 2026-08-09 18:20 UTCEG score recompute
  19. 2026-08-09 18:19 UTCNVD updateCVSS v4 → 5.5
  20. 2026-08-09 18:01 UTCEG score recompute
  21. 2026-08-09 18:01 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-19363?
CVE-2026-19363 is a medium vulnerability published on August 9, 2026. A vulnerability was found in lmammino oidc-authorizer up to 0.4.0. Impacted is an unknown function of the file src/handler.rs of the component Lambda Authorizer. The manipulation results in sensitive information in log files. The attack can be executed remotely. src/handler.rs logs raw…
When was CVE-2026-19363 disclosed?
CVE-2026-19363 was first published in the National Vulnerability Database on August 9, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19363 actively exploited?
CVE-2026-19363 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.6% of all scored CVEs.
What is the CVSS score of CVE-2026-19363?
CVE-2026-19363 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-19363?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19363, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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