Improper Validation of Array Index Affecting cilium-cli package, versions <0.19.5-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.33% (27th percentile)

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  • Snyk IDSNYK-WOLFILATEST-CILIUMCLI-17959324
  • published13 Jul 2026
  • disclosed10 Sept 2026

Introduced: 13 Jul 2026

CVE-2026-49838  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

Upgrade Wolfi cilium-cli to version 0.19.5-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cilium-cli package and not the cilium-cli package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

GoBGP is an open source Border Gateway Protocol (BGP) implementation in the Go Programming Language. Prior to version 4.7.0, GoBGP accepts a zero-length AS_PATH during UPDATE decoding and later panics while validating that attribute for a confederation eBGP peer. The vulnerable path is in the BGP UPDATE validator: a malformed UPDATE that should be rejected as a malformed AS_PATH instead reaches an unchecked p.Value[0] access, allowing a configured confederation eBGP peer to trigger a denial of service. Version 4.7.0 patches the issue.

CVSS Base Scores

version 3.1