Vulnerability · Published Jun 3, 2026 · Assigned by VulDB

CVE-2026-10722cilium ebpf LoadCollectionSpec/LoadCollectionSpecFromReader btf.go loadRawSpec integer overflow

Low 3.3

In plain English

A low-severity integer overflow in ebpf from cilium. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low

Exploit odds (30 days)0.2%top 92.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	golang-github-cilium-ebpf	no fix listed	DEBIAN-CVE-2026-10722
Debian:13	golang-github-cilium-ebpf	no fix listed	DEBIAN-CVE-2026-10722
Debian:14	golang-github-cilium-ebpf	0.22.0+ds1-1	DEBIAN-CVE-2026-10722
Go	github.com/cilium/ebpf	0.22.0	GHSA-xhgw-qwwf-pg32
Go	github.com/cilium/ebpf	0.22.0	GO-2026-6238
Ubuntu:22.04:LTS	golang-github-cilium-ebpf	no fix listed	UBUNTU-CVE-2026-10722
Ubuntu:24.04:LTS	golang-github-cilium-ebpf	no fix listed	UBUNTU-CVE-2026-10722
Ubuntu:25.10	golang-github-cilium-ebpf	no fix listed	UBUNTU-CVE-2026-10722
Ubuntu:26.04:LTS	golang-github-cilium-ebpf	no fix listed	UBUNTU-CVE-2026-10722
Ubuntu:26.10	golang-github-cilium-ebpf	no fix listed	UBUNTU-CVE-2026-10722

Affected products (as reported)

Vendor	Product	Versions
cilium	ebpf	0.10.20.30.40.50.60.70.8

Weakness: CWE-190, CWE-189 · Vector: 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

References

VDB-368091 | cilium ebpf LoadCollectionSpec/LoadCollectionSpecFromReader btf.go loadRawSpec integer overflow vdb-entry, technical-description
VDB-368091 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-10722 | CVE Analysis and Report third-party-advisory
Submit #818291 | Cilium cilium/ebpf v0.19.0-v0.21.0 Denial of Service third-party-advisory
https://github.com/cilium/ebpf/issues/2019 issue-tracking
https://github.com/cilium/ebpf/pull/2021 issue-tracking, patch
https://gist.github.com/thesmartshadow/256bff0f8042c584f993ace89074a815 exploit
https://github.com/cilium/ebpf/commit/533dfc82fd228bfadf42ea7180c39de7d9af47fa patch
https://github.com/cilium/ebpf/ product