CVE-2026-19363

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM 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: 0.7%CVSS: 5.3Exploit: None knownExposed services: Not assessed

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

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
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA SSVC

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%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
50th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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 15× in last 7d / 66× 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.

Showing the most recent 100 of 155 total refreshes for this CVE.

  1. 2026-10-05 07:59 UTCEG score recompute
  2. 2026-10-05 07:59 UTCGHSA enrichment
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-04 05:39 UTCEG score recompute
  5. 2026-10-04 05:39 UTCGHSA enrichment
  6. 2026-10-02 09:27 UTCEG score recompute
  7. 2026-10-02 09:27 UTCGHSA enrichment
  8. 2026-10-01 19:49 UTCEPSS rescore
  9. 2026-09-30 22:50 UTCEG score recompute
  10. 2026-09-30 22:50 UTCGHSA enrichment
  11. 2026-09-30 15:02 UTCEPSS rescore
  12. 2026-09-29 15:20 UTCEPSS rescore
  13. 2026-09-29 05:39 UTCEG score recompute
  14. 2026-09-29 05:39 UTCGHSA enrichment
  15. 2026-09-28 13:51 UTCEPSS rescore
  16. 2026-09-27 17:03 UTCEG score recompute
  17. 2026-09-27 17:03 UTCGHSA enrichment
  18. 2026-09-27 13:47 UTCEPSS rescore
  19. 2026-09-26 15:58 UTCEPSS rescore
  20. 2026-09-25 04:10 UTCEG score recompute
  21. 2026-09-25 04:10 UTCGHSA enrichment
  22. 2026-09-23 21:20 UTCEG score recompute
  23. 2026-09-23 21:20 UTCGHSA enrichment
  24. 2026-09-22 22:54 UTCEG score recompute
  25. 2026-09-22 22:53 UTCGHSA enrichment
Show 75 more
  1. 2026-09-22 00:27 UTCEG score recompute
  2. 2026-09-22 00:27 UTCGHSA enrichment
  3. 2026-09-20 20:30 UTCEG score recompute
  4. 2026-09-20 20:30 UTCGHSA enrichment
  5. 2026-09-19 21:46 UTCEG score recompute
  6. 2026-09-19 21:46 UTCGHSA enrichment
  7. 2026-09-18 23:20 UTCEG score recompute
  8. 2026-09-18 23:20 UTCGHSA enrichment
  9. 2026-09-18 19:27 UTCEPSS rescore
  10. 2026-09-18 00:54 UTCEG score recompute
  11. 2026-09-18 00:54 UTCGHSA enrichment
  12. 2026-09-17 01:11 UTCEG score recompute
  13. 2026-09-17 01:11 UTCGHSA enrichment
  14. 2026-09-16 14:07 UTCEPSS rescore
  15. 2026-09-16 05:14 UTCEPSS rescore
  16. 2026-09-16 02:45 UTCEG score recompute
  17. 2026-09-16 02:45 UTCGHSA enrichment
  18. 2026-09-15 00:52 UTCGHSA enrichment
  19. 2026-09-13 22:10 UTCEG score recompute
  20. 2026-09-13 22:10 UTCGHSA enrichment
  21. 2026-09-13 16:46 UTCEPSS rescore
  22. 2026-09-12 23:43 UTCEG score recompute
  23. 2026-09-12 23:43 UTCGHSA enrichment
  24. 2026-09-12 15:00 UTCEPSS rescore
  25. 2026-09-12 01:17 UTCEG score recompute
  26. 2026-09-12 01:17 UTCGHSA enrichment
  27. 2026-09-11 14:52 UTCEPSS rescore
  28. 2026-09-11 09:36 UTCEPSS rescore
  29. 2026-09-11 02:51 UTCEG score recompute
  30. 2026-09-11 02:51 UTCGHSA enrichment
  31. 2026-09-10 09:34 UTCEPSS rescore
  32. 2026-09-10 04:23 UTCGHSA enrichment
  33. 2026-09-09 05:57 UTCEG score recompute
  34. 2026-09-09 05:57 UTCGHSA enrichment
  35. 2026-09-08 22:00 UTCEPSS rescore
  36. 2026-09-07 17:35 UTCEG score recompute
  37. 2026-09-07 17:35 UTCGHSA enrichment
  38. 2026-09-07 16:01 UTCEPSS rescore
  39. 2026-09-06 13:47 UTCEPSS rescore
  40. 2026-09-06 05:24 UTCEG score recompute
  41. 2026-09-06 05:24 UTCGHSA enrichment
  42. 2026-09-05 06:59 UTCEG score recompute
  43. 2026-09-05 06:59 UTCGHSA enrichment
  44. 2026-09-04 08:32 UTCEG score recompute
  45. 2026-09-04 08:32 UTCGHSA enrichment
  46. 2026-09-04 05:06 UTCEPSS rescore
  47. 2026-09-03 05:58 UTCEG score recompute
  48. 2026-09-03 05:58 UTCGHSA enrichment
  49. 2026-09-02 14:11 UTCEPSS rescore
  50. 2026-09-02 06:40 UTCEG score recompute
  51. 2026-09-02 06:40 UTCGHSA enrichment
  52. 2026-09-01 13:53 UTCEPSS rescore
  53. 2026-09-01 07:08 UTCEG score recompute
  54. 2026-09-01 07:07 UTCGHSA enrichment
  55. 2026-09-01 04:39 UTCEPSS rescore
  56. 2026-08-31 07:08 UTCEG score recompute
  57. 2026-08-31 07:08 UTCGHSA enrichment
  58. 2026-08-30 19:17 UTCEPSS rescore
  59. 2026-08-30 08:40 UTCEG score recompute
  60. 2026-08-30 08:40 UTCGHSA enrichment
  61. 2026-08-30 01:22 UTCEPSS rescore
  62. 2026-08-29 10:14 UTCEG score recompute
  63. 2026-08-29 10:14 UTCGHSA enrichment
  64. 2026-08-28 21:41 UTCEPSS rescore
  65. 2026-08-27 20:41 UTCEG score recompute
  66. 2026-08-27 20:41 UTCGHSA enrichment
  67. 2026-08-27 14:25 UTCEPSS rescore
  68. 2026-08-26 21:57 UTCEG score recompute
  69. 2026-08-26 21:57 UTCGHSA enrichment
  70. 2026-08-26 14:46 UTCEPSS rescore
  71. 2026-08-25 23:18 UTCEG score recompute
  72. 2026-08-25 23:18 UTCGHSA enrichment
  73. 2026-08-25 13:48 UTCEPSS rescore
  74. 2026-08-25 00:49 UTCEG score recompute
  75. 2026-08-25 00:49 UTCGHSA enrichment

Related CVEs(same CWE)

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 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 0.7% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19363?
CVE-2026-19363 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19363?
No fix for CVE-2026-19363 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-19363 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-19363

Explore →

Is Your Infrastructure Affected by CVE-2026-19363?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs