Authenticated NRF crash via unbounded amfInfoList allocation
Published May 30, 2026 · Updated May 30, 2026
Resource exhaustion in Open5GS 2.7.0 through 2.7.7 allows remote authenticated users to crash the NRF via a crafted NF profile. handle_amf_info() allocates one fixed-pool NF-info object for every unbounded amfInfoList entry and asserts when the pool is exhausted. Reachability requires access to NRF registration or control of a trusted Home-NRF discovery response; exploitation terminates the NRF process.
Summary
What happened
Resource exhaustion in Open5GS 2.7.0 through 2.7.7 allows remote authenticated users to crash the NRF via a crafted NF profile. handle_amf_info() allocates one fixed-pool NF-info object for every unbounded amfInfoList entry and asserts when the pool is exhausted. Reachability requires access to NRF registration or control of a trusted Home-NRF discovery response; exploitation terminates the NRF process.
The record
- CVE
- CVE-2026-10156
- Published
- May 30, 2026
- Updated
- May 30, 2026
- Vendor
- Open5GS
- Product
- Open5GS
- Classifications
- CWE-404, CWE-400, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 30, 2026CVE publishedPublication date reported by the CVE source.
- May 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.7.0
- Affected versionversion=2.7.1
- Affected versionversion=2.7.2
- Affected versionversion=2.7.3
- Affected versionversion=2.7.4
- Affected versionversion=2.7.5
- Affected versionversion=2.7.6
- Affected versionversion=2.7.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- NRF amfInfoList pool-exhaustion reproductionfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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