CVE record · CVE-2026-54887

DTLS server cookie bypass during startup window due to empty initial cookie secret

CVSS 6.3 MediumEPSS 0.0024 · 15th percentile

Published by the CVE Program (CNA: EEF) at 2 Jul 2026, 16:06 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Erlang	OTP Package name: ssl pkg:otp/ssl?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git	affected 8.2 to before * otp Other versions: unaffected
Erlang	OTP Package name: erlang/otp https://github.com pkg:github/erlang/otp	affected 20.0 to before * otp affected e594aad2f87aab39e99fccf9e021bc94e0bbf7d4 to before 888e3bcd72d5406016b9e0de741026bc2a6f114d git Other versions: unaffected

Identifiers: CVE-2026-54887
CNA: EEF
Weakness (CWE): CWE-1394
Tags: Erlang OTP
CWE-1394
Published: 2 Jul 2026
Updated: 24 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.3	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	CNA (EEF)

CISA KEV Not listed.
EPSS 0.0024, the 15th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 2 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/erlang/otp/security/advisories/GHSA-p2m2-3c2w-8jp8 vendor-advisoryrelated
cna.erlef.org/cves/CVE-2026-54887.html related
osv.dev/vulnerability/EEF-CVE-2026-54887 related
www.erlang.org/doc/system/versions.html#order-of-versions version-scheme
github.com/erlang/otp/commit/888e3bcd72d5406016b9e0de741026bc2a6f114d patch

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.