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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.

PUBLISHED Reserved 2026-06-03 | Published 2026-06-03 | Updated 2026-06-03 | Assigner VulDB




MEDIUM: 4.8CVSS: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
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

Integer Overflow

Numeric Error

Product status

0.1
affected

0.2
affected

0.3
affected

0.4
affected

0.5
affected

0.6
affected

0.7
affected

0.8
affected

0.9
affected

0.10
affected

0.11
affected

0.12
affected

0.13
affected

0.14
affected

0.15
affected

0.16
affected

0.17
affected

0.18
affected

0.19
affected

0.20
affected

0.21.0
affected

Timeline

2026-06-03:Advisory disclosed
2026-06-03:VulDB entry created
2026-06-03:VulDB entry last update

Credits

alifiras (VulDB User) reporter

alifiras (VulDB User) analyst

References

vuldb.com/vuln/368091 (VDB-368091 | cilium ebpf LoadCollectionSpec/LoadCollectionSpecFromReader btf.go loadRawSpec integer overflow) vdb-entry technical-description

vuldb.com/vuln/368091/cti (VDB-368091 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-10722 (CVE-2026-10722 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/818291 (Submit #818291 | Cilium cilium/ebpf v0.19.0-v0.21.0 Denial of Service) third-party-advisory

github.com/cilium/ebpf/issues/2019 issue-tracking

github.com/cilium/ebpf/pull/2021 issue-tracking patch

gist.github.com/...rtshadow/256bff0f8042c584f993ace89074a815 exploit

github.com/...ommit/533dfc82fd228bfadf42ea7180c39de7d9af47fa patch

github.com/cilium/ebpf/ product

cve.org (CVE-2026-10722)

nvd.nist.gov (CVE-2026-10722)

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