GHSA-gqx7-6552-67hf

Suggest an improvement
Source
https://github.com/advisories/GHSA-gqx7-6552-67hf
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-gqx7-6552-67hf/GHSA-gqx7-6552-67hf.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-gqx7-6552-67hf
Aliases
Published
2026-05-15T18:30:48Z
Modified
2026-06-08T23:45:13Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Improper Verification of Cryptographic Signature in com.oviva.telematik:epa4all-client
Details

Impact

An attacker who can MITM the TLS connection between the client and the IDP (within the TI network) can substitute a forged discovery document. The forged document redirects u ri_puk_idp_enc and uri_puk_idp_sig to attacker-controlled URLs. The client then encrypts the SMC-B-signed challenge response to the attacker's encryption key and POSTs it to the attacker's auth endpoint. This captures the signed authentication material.

Patches

#36

Workarounds

None.

Resources

  • MS-OVIVA-EPA4ALL-d453c1

Credits

Machine Spirits (contact@machinespirits.de)

  • Dr. rer. nat. Simon Weber
  • Dipl.-Inf. Volker Schönefeld
  • Chiara Fliegner
Database specific 
{
    "cwe_ids":  [
        "CWE-347"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-05-15T18:30:48Z",
    "nvd_published_at":  "2026-05-26T21:16:40Z",
    "severity":  "HIGH"
}
References

Affected packages

Maven / com.oviva.telematik:epa4all-client

Package

Name
com.oviva.telematik:epa4all-client
View open source insights on deps.dev
Purl
pkg:maven/com.oviva.telematik/epa4all-client

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.2

Affected versions

0.*
0.0.2-rc.0
0.0.4
0.0.5
0.0.7
0.0.8
1.*
1.0.0
1.0.2
1.0.3
1.1.0
1.1.1
1.2.0
1.2.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-gqx7-6552-67hf/GHSA-gqx7-6552-67hf.json"