PT-2026-41536 · Open5Gs · Open5Gs

Ziyulin · Published 2026-05-17 · Updated 2026-05-17 · CVE-2026-8744

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Open5GS versions prior to 2.7.8

Description A flaw in the NRF component of the library /lib/sbi/context.c allows a remote attacker to cause a denial of service. The issue exists within the ogs sbi subscription data add() and ogs sbi nf service add() functions.

Recommendations Apply patch 819db11a08b9736a3576c4f99ceb28f7eb99523a to remediate the issue. As a temporary workaround, restrict access to the ogs sbi subscription data add() and ogs sbi nf service add() functions.

Exploit

Fix

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2026-8744

Affected Products

Open5Gs

References · 13

• 🔥 https://github.com/open5gs/open5gs/issues/4465 · Exploit
• 🔥 https://github.com/open5gs/open5gs/issues/4466 · Exploit
• https://github.com/open5gs/open5gs/commit/819db11a08b9736a3576c4f99ceb28f7eb99523a · Patch
• https://github.com/open5gs/open5gs/pull/4534 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-8744 · Security Note
• https://t.me/cveNotify/163772 · Telegram Post
• https://vuldb.com/vuln/364331/cti · Note
• https://vuldb.com/submit/817029 · Note
• https://t.me/CVEtracker/54043 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2055966846042476929 · Twitter Post
• https://vuldb.com/vuln/364331 · Note
• https://github.com/open5gs/open5gs · Note
• https://vuldb.com/submit/817030 · Note