CVE-2026-8744 (GCVE-0-2026-8744)
Vulnerability from cvelistv5 – Published: 2026-05-17 09:15 – Updated: 2026-05-18 16:20 X_Open Source
VLAI
EPSS
VEX
Title
Open5GS NRF context.c ogs_sbi_nf_service_add denial of service
Summary
A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 16:10 UTC
CWE
- CWE-404 - Denial of Service
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/364331 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/364331/cti | signaturepermissions-required |
| https://vuldb.com/submit/817029 | third-party-advisory |
| https://vuldb.com/submit/817030 | third-party-advisory |
| https://github.com/open5gs/open5gs/issues/4465 | issue-tracking |
| https://github.com/open5gs/open5gs/pull/4534 | issue-trackingpatch |
| https://github.com/open5gs/open5gs/issues/4466 | exploitissue-tracking |
| https://github.com/open5gs/open5gs/commit/819db11… | patch |
| https://github.com/open5gs/open5gs/ | product |
Impacted products
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"redhat_vex": {
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"cve": "CVE-2026-8744",
"id": "CVE-2026-8744",
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"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Open5GS NRF context.c ogs_sbi_nf_service_add denial of service",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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.
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