ebpf-go is vulnerable to integer overflow via LoadCollectionSpecFromReader

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

1.9 · 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 · score source

EPSS

• CVE-2026-10722: 0.18% estimated exploitation activity in the next 30 days; percentile 7.49 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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 by the source

18 Aug 2026, 16:38 UTC

Last modified by the source

19 Aug 2026, 21:42 UTC

Source last checked

26 Oct 2026, 15:28 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-xhgw-qwwf-pg32

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GO-2026-6238

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# Patch Next advisory brief: CVE-2026-10722

Advisory: ebpf-go is vulnerable to integer overflow via LoadCollectionSpecFromReader
IDs: CVE-2026-10722, GHSA-xhgw-qwwf-pg32
Record: https://patchnext.com/advisories/cve-2026-10722 (revision 3, source checked 26 Oct 2026, 15:28 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Low (CVSS 1.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/cilium/ebpf 0.22.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/cilium/ebpf: affected < 0.22.0; fixed in 0.22.0

## Suggested inspection (read-only)
- Go github.com/cilium/ebpf: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/cilium/ebpf.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GO-2026-6238 (OSV record GO-2026-6238 lists affected ranges: Go github.com/cilium/ebpf >=0 <0.22.0 (fixed))
- Verified: https://github.com/advisories/GHSA-xhgw-qwwf-pg32 (GitHub-reviewed advisory GHSA-xhgw-qwwf-pg32 lists affected ranges: Go github.com/cilium/ebpf >=0 <0.22.0)

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