CVE-2026-10722

cilium ebpf LoadCollectionSpec/LoadCollectionSpecFromReader btf.go loadRawSpec integer overflow

State: Published
Severity: 4.8 Medium
Published: Jun 3, 2026
Updated: Jun 3, 2026
Reserved: Jun 3, 2026

Description

A vulnerability has been found in cilium ebpf up to 0.21.0. This affects the function loadRawSpec of the file btf/btf.go of the component LoadCollectionSpec/LoadCollectionSpecFromReader. Such manipulation of the argument offset leads to integer overflow. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The name of the patch is 533dfc82fd228bfadf42ea7180c39de7d9af47fa. A patch should be applied to remediate this issue.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	3.3 Low	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
3.0	3.3 Low	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
2.0	1.7 Low	AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-190 Integer Overflow
CWE-189 Numeric Error

Affected Products

Product	Versions
ebpfcilium	0.1Affected 0.2Affected 0.3Affected 0.4Affected 0.5Affected 0.6Affected 0.7Affected 0.8Affected 0.9Affected 0.10Affected 0.11Affected 0.12Affected 0.13Affected 0.14Affected 0.15Affected 0.16Affected 0.17Affected 0.18Affected 0.19Affected 0.20Affected 0.21.0Affected

References

VDB-368091 | cilium ebpf LoadCollectionSpec/LoadCollectionSpecFromReader btf.go loadRawSpec integer overflowvdb-entrytechnical-description
VDB-368091 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-10722 | CVE Analysis and Reportthird-party-advisory
Submit #818291 | Cilium cilium/ebpf v0.19.0-v0.21.0 Denial of Servicethird-party-advisory
https://github.com/cilium/ebpf/issues/2019issue-tracking
https://github.com/cilium/ebpf/pull/2021issue-trackingpatch
https://gist.github.com/thesmartshadow/256bff0f8042c584f993ace89074a815exploit
https://github.com/cilium/ebpf/commit/533dfc82fd228bfadf42ea7180c39de7d9af47fapatch
https://github.com/cilium/ebpf/product

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