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0xCERT Security Advisory 0xCERT-2026-0219
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Advisory-ID:  0xCERT-2026-0219
Severity:     Medium
Published:    2026-02-18T22:34:49.000Z
Updated:      2026-10-08T22:48:26.400Z
Chains:       Ethereum
URL:          https://www.0xcert.com/advisory/0xCERT-2026-0219

Title: Go Ethereum affected by DoS via malicious p2p message

Summary
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Go Ethereum affected by DoS via malicious p2p message. An attacker can cause high memory usage by sending a specially-crafted p2p message. More details to be released later. The issue is resolved in the v1.17.0 release.

Details
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Summary
An attacker can cause high memory usage by sending a specially-crafted p2p message. More details to be released later. The issue is resolved in the v1.17.0 release.

Affected
- - github.com/ethereum/go-ethereum (go) < 1.17.0 — fixed in 1.17.0

Severity
Medium (CVSS 6.9), as rated by the upstream advisory.

Recommended actions
- - Upgrade github.com/ethereum/go-ethereum to 1.17.0 or later

Source & attribution
This 0xCERT advisory summarises GHSA-689v-6xwf-5jf3 / CVE-2026-26313 from the GitHub Advisory Database, credited upstream to revofusion: https://github.com/advisories/GHSA-689v-6xwf-5jf3. Details may change; refer to the original source for the authoritative record.

References
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- - https://github.com/advisories/GHSA-689v-6xwf-5jf3
- - CVE-2026-26313
- - https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3
- - https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0
- - https://nvd.nist.gov/vuln/detail/CVE-2026-26313
- - https://pkg.go.dev/vuln/GO-2026-4508

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