CVE-2026-78186 (GCVE-0-2026-78186)
Vulnerability from cvelistv5 – Published: 2026-08-24 04:15 – Updated: 2026-08-24 14:00 X_Open Source
VLAI
EPSS
VEX
Title
Open5GS HSS hss-cx-path.c assertion
Summary
A flaw has been found in Open5GS up to 2.8.0. This affects an unknown function of the file src/hss/hss-cx-path.c of the component HSS. This manipulation of the argument User-Name causes reachable assertion. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: c9abe09421eb99bbf1cd7862a3d375e58a4eb9e4. It is recommended to apply a patch to fix this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 13:59 UTC
CWE
- CWE-617 - Reachable Assertion
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394568 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394568/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78186 | third-party-advisory |
| https://vuldb.com/submit/885203 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4675 | exploitissue-tracking |
| https://github.com/open5gs/open5gs/commit/c9abe09… | patch |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.