CVE record · CVE-2026-48859

SSH server timing side-channel in ssh_auth:check_password/3 allows unauthenticated username enumeration

CVSS 6.3 MediumEPSS 0.0035 · 29th percentile

Published by the CVE Program (CNA: EEF) at 10 Jun 2026, 14:35 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: otp pkg:software-id/erlang.org/otp	affected 29.0 to before 29.0.2 otp Other versions: unaffected
Erlang	OTP Package name: ssh pkg:otp/ssh?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git	affected 6.0 to before 6.0.1 otp Other versions: unaffected
Erlang	OTP Package name: erlang/otp https://github.com pkg:github/erlang/otp	affected 032d1bc9491a3975c68faf9bc7776115d6ae3005 to before c342092ef4b369bb409d5b71ac8fd83bab74aedf git Other versions: unaffected

Identifiers: CVE-2026-48859
CNA: EEF
Weakness (CWE): CWE-208
Tags: Erlang OTP
CWE-208
Published: 10 Jun 2026
Updated: 8 Sept 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:L/VI:N/VA:N/SC:N/SI:N/SA:N	CNA (EEF)

CISA KEV Not listed.
EPSS 0.0035, the 29th 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 10 Jun 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/erlang/otp/security/advisories/GHSA-3w6p-vwhf-wvp4 vendor-advisoryrelated
cna.erlef.org/cves/CVE-2026-48859.html related
osv.dev/vulnerability/EEF-CVE-2026-48859 related
www.erlang.org/doc/system/versions.html#order-of-versions version-scheme
github.com/erlang/otp/commit/c342092ef4b369bb409d5b71ac8fd83bab74aedf 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.