cilium ebpf up to 0.21.0 LoadCollectionSpec/LoadCollectionSpecFromReader btf/btf.go loadRawSpec offset integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in cilium ebpf up to 0.21.0 and classified as problematic. This impacts the function loadRawSpec of the file btf/btf.go of the component LoadCollectionSpec/LoadCollectionSpecFromReader. Performing a manipulation of the argument offset results in integer overflow. This vulnerability is identified as CVE-2026-10722. The attack is only possible with local access. Additionally, an exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic 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. The manipulation of the argument offset with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-10722. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 326329 (SUSE SLED15 / SLES15 Security Update : alloy (SUSE-SU-2026:2824-1)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 533dfc82fd228bfadf42ea7180c39de7d9af47fa is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (326329) and EUVD (EUVD-2026-34082). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

Researcher Base Score: 5.5
Researcher Vector: 🔒

NVD Base Score: 5.5
NVD Vector: 🔒

CNA Base Score: 3.3
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Researcher Base Score: 🔒

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 326329
Nessus Name: SUSE SLED15 / SLES15 Security Update : alloy (SUSE-SU-2026:2824-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 533dfc82fd228bfadf42ea7180c39de7d9af47fa

Timelineinfo

06/03/2026 Advisory disclosed
06/03/2026 +0 days VulDB entry created
07/11/2026 +38 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 2019
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2026-10722 (🔒)
GCVE (CVE): GCVE-0-2026-10722
GCVE (VulDB): GCVE-100-368091
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/03/2026 07:22
Updated: 07/11/2026 19:54
Changes: 06/03/2026 07:22 (61), 06/03/2026 15:54 (19), 06/03/2026 15:55 (2), 06/03/2026 15:57 (4), 06/03/2026 18:12 (1), 06/08/2026 00:42 (32), 06/11/2026 17:19 (10), 07/11/2026 19:54 (2)
Complete: 🔍
Submitter: alifiras
Committer: alifiras
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #818291: Cilium cilium/ebpf v0.19.0-v0.21.0 Denial of Service (by alifiras)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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