CVE-2026-50576

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

ePA 3.x Integration implements the authorization workflow and writes Medical Information Objects to Germany's electronic patient record. Prior to 1.3.0, ePA 3.x Integration does not neutralize CRLF characters in values used by app/vau/VAUProtokoll.py to construct VAU inner HTTP requests. The build_inner_header function interpolates the uri, host, accept_type, content_type, content_length, USER_AGENT, and insurant_id values into request lines and headers, including x-useragent and x-insurantid. An authenticated attacker who controls a value can inject additional headers into the inner request. Depending on ePA server handling, an injected x-insurantid header can expose another patient's records, and injected Authorization headers can bypass the intended authentication or authorization context. Session-derived USER_AGENT input can also poison requests across the session. This issue is fixed in version 1.3.0.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA 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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 18, 2026

Last Modified

September 8, 2026

Advisory Details (5)

Auto-updated Aug 18, 2026
Patch available. Sources: github_release, github, github_commit, github_pr.
generic

CRLF-Header-Injection im fbeta ePA3-Service-OpenSource

https://www.machinespirits.de/advisory/013a60
githubMentions a patch (unverified)

HTTP Header Injection in VAU Inner Requests · Advisory · fbeta-GmbH/ePA3-Service-OpenSource · GitHub

https://github.com/fbeta-GmbH/ePA3-Service-OpenSource/security/advisories/GHSA-j8jg-7fqf-4xx9
github_release Patch Available

1.3.0

Patch available: fbeta-GmbH/ePA3-Service-OpenSource 1.3.0

https://github.com/fbeta-GmbH/ePA3-Service-OpenSource/releases/tag/1.3.0
github_pr Patch Available

fix: Sanitize header values and validate insurant ID format in VAUKanal

Patch available: fbeta-GmbH/ePA3-Service-OpenSource 1.3.0 (PR #11 merged 2026-05-27)

https://github.com/fbeta-GmbH/ePA3-Service-OpenSource/pull/11
github_commit Patch Available

commit b984d15d2614 (fbeta-GmbH/ePA3-Service-OpenSource)

Patch available: fbeta-GmbH/ePA3-Service-OpenSource 1.3.0 (contains commit b984d15d2614)

https://github.com/fbeta-GmbH/ePA3-Service-OpenSource/commit/b984d15d261423302de337adae25e84c54e9c2d1

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 43× 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. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-07 07:44 UTCEG score recompute
  5. 2026-10-06 15:18 UTCEPSS rescore
  6. 2026-10-06 08:22 UTCEG score recompute
  7. 2026-10-05 17:43 UTCEPSS rescore
  8. 2026-10-04 23:22 UTCEPSS rescore
  9. 2026-10-03 17:38 UTCEG score recompute
  10. 2026-10-03 14:26 UTCEPSS rescore
  11. 2026-10-02 17:56 UTCEPSS rescore
  12. 2026-10-02 08:29 UTCEG score recompute
  13. 2026-10-01 19:50 UTCEPSS rescore
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  15. 2026-09-30 15:03 UTCEPSS rescore
  16. 2026-09-30 09:48 UTCEG score recompute
  17. 2026-09-29 06:39 UTCEG score recompute
  18. 2026-09-28 13:51 UTCEPSS rescore
  19. 2026-09-28 07:17 UTCEG score recompute
  20. 2026-09-27 13:48 UTCEPSS rescore
  21. 2026-09-27 07:56 UTCEG score recompute
  22. 2026-09-26 15:59 UTCEPSS rescore
  23. 2026-09-26 00:27 UTCEPSS rescore
  24. 2026-09-25 01:27 UTCEG score recompute
  25. 2026-09-23 20:20 UTCEG score recompute
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  1. 2026-09-23 17:53 UTCEPSS rescore
  2. 2026-09-22 20:25 UTCEG score recompute
  3. 2026-09-20 20:33 UTCEG score recompute
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-19 21:12 UTCEG score recompute
  6. 2026-09-18 21:51 UTCEG score recompute
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-17 21:51 UTCEG score recompute
  9. 2026-09-16 21:56 UTCEG score recompute
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 21:42 UTCEG score recompute
  13. 2026-09-13 22:41 UTCEG score recompute
  14. 2026-09-13 16:47 UTCEPSS rescore
  15. 2026-09-12 23:20 UTCEG score recompute
  16. 2026-09-11 23:59 UTCEG score recompute
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 00:38 UTCEG score recompute
  19. 2026-09-10 09:35 UTCEPSS rescore
  20. 2026-09-10 01:06 UTCEG score recompute
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 22:31 UTCEG score recompute
  23. 2026-09-07 16:01 UTCEPSS rescore
  24. 2026-09-06 23:09 UTCEG score recompute
  25. 2026-09-06 13:47 UTCEPSS rescore
  26. 2026-09-05 23:39 UTCEG score recompute
  27. 2026-09-05 00:18 UTCEG score recompute
  28. 2026-09-04 05:06 UTCEPSS rescore
  29. 2026-09-03 01:23 UTCEG score recompute
  30. 2026-09-02 14:12 UTCEPSS rescore
  31. 2026-09-02 01:45 UTCEG score recompute
  32. 2026-09-01 13:54 UTCEPSS rescore
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  34. 2026-08-31 02:32 UTCEG score recompute
  35. 2026-08-30 19:17 UTCEPSS rescore
  36. 2026-08-30 03:11 UTCEG score recompute
  37. 2026-08-30 01:22 UTCEPSS rescore
  38. 2026-08-29 03:49 UTCEG score recompute
  39. 2026-08-28 21:41 UTCEPSS rescore
  40. 2026-08-27 15:54 UTCEG score recompute
  41. 2026-08-27 14:25 UTCEPSS rescore
  42. 2026-08-26 16:25 UTCEG score recompute
  43. 2026-08-26 14:46 UTCEPSS rescore
  44. 2026-08-25 16:29 UTCEG score recompute
  45. 2026-08-25 13:49 UTCEPSS rescore
  46. 2026-08-24 17:07 UTCEG score recompute
  47. 2026-08-23 17:09 UTCEG score recompute
  48. 2026-08-23 00:19 UTCEPSS rescore
  49. 2026-08-22 17:48 UTCEG score recompute
  50. 2026-08-21 23:49 UTCEPSS rescore
  51. 2026-08-21 18:27 UTCEG score recompute
  52. 2026-08-20 22:55 UTCEPSS rescore
  53. 2026-08-19 19:45 UTCEG score recompute
  54. 2026-08-19 17:04 UTCEPSS rescore
  55. 2026-08-18 20:23 UTCEG score recompute
  56. 2026-08-18 19:19 UTCEG score recompute
  57. 2026-08-18 17:21 UTCEG score recompute
  58. 2026-08-18 17:07 UTCEG score recompute
  59. 2026-08-18 17:04 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-50576?
CVE-2026-50576 is a medium vulnerability published on August 18, 2026. ePA 3.x Integration implements the authorization workflow and writes Medical Information Objects to Germany's electronic patient record. Prior to 1.3.0, ePA 3.x Integration does not neutralize CRLF characters in values used by app/vau/VAUProtokoll.py to construct VAU inner HTTP requests. The…
When was CVE-2026-50576 disclosed?
CVE-2026-50576 was first published on August 18, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50576 actively exploited?
CVE-2026-50576 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50576?
CVE-2026-50576 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-50576?
A fix for CVE-2026-50576 is available: update to the fixed version the vendor names in its advisory.

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