CVE-2026-10117Public exploitNetwork attack vector

Authenticated service crash via held HTTP/2 streams

Published May 30, 2026 · Updated May 30, 2026

Denial of service in Open5GS 2.7.0 through 2.7.7 allows remote authenticated users to crash SBI network functions via HTTP/2 requests. The on_begin_headers function allocates stream and request objects when headers arrive, then asserts a nonnull stream after unfinished bodies exhaust fixed pools. SBI network access and valid credentials are required; affected processes exit or restart, interrupting that network function.

CVSS severity4.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Open5GS 2.7.0 through 2.7.7 allows remote authenticated users to crash SBI network functions via HTTP/2 requests. The on_begin_headers function allocates stream and request objects when headers arrive, then asserts a nonnull stream after unfinished bodies exhaust fixed pools. SBI network access and valid credentials are required; affected processes exit or restart, interrupting that network function.

The record

CVE
CVE-2026-10117
Published
May 30, 2026
Updated
May 30, 2026
Vendor
Open5GS
Product
Open5GS
Classifications
CWE-404, T1499.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2026CVE publishedPublication date reported by the CVE source.
  2. May 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.7.0
  2. Affected versionversion=2.7.1
  3. Affected versionversion=2.7.2
  4. Affected versionversion=2.7.3
  5. Affected versionversion=2.7.4
  6. Affected versionversion=2.7.5
  7. Affected versionversion=2.7.6
  8. Affected versionversion=2.7.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open5GS · Open5GSversion=2.7.0; version=2.7.1; version=2.7.2; version=2.7.3; version=2.7.4; version=2.7.5; version=2.7.6; version=2.7.7

Published CVSS scores

4.3VulDBCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.0VulDBAV:N/AC:L/Au:S/C:N/I:N/A:P
2.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499.002Service Exhaustion Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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