What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-03 · updated 2026-07-22
• Weakness: CWE-189

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 products

• cilium ebpf: through 0.21.0

References

• https://gist.github.com/thesmartshadow/256bff0f8042c584f993ace89074a815
• https://github.com/cilium/ebpf/
• https://github.com/cilium/ebpf/commit/533dfc82fd228bfadf42ea7180c39de7d9af47fa
• https://github.com/cilium/ebpf/issues/2019
• https://github.com/cilium/ebpf/pull/2021
• https://vuldb.com/cve/CVE-2026-10722
• https://vuldb.com/submit/818291
• https://vuldb.com/vuln/368091
• https://vuldb.com/vuln/368091/cti

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