CVE record · CVE-2026-54890

BEAM VM crash via integer underflow in binary_to_term BIT_BINARY_EXT decoding

CVSS 8.2 HighEPSS 0.0042 · 36th percentile

Published by the CVE Program (CNA: EEF) at 27 Jul 2026, 15:39 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: erts pkg:otp/erts?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git	affected 15.0 to before * otp Other versions: unaffected
Erlang	OTP Package name: erlang/otp https://github.com pkg:github/erlang/otp	affected 27.0 to before * otp affected 24ef4cbaeda9b9c26682cba75f2f15b0c58722aa to before dc1bf9344c0ce62717cf60866590cea0242780fd git Other versions: unaffected

Identifiers: CVE-2026-54890
CNA: EEF
Weakness (CWE): CWE-191 · CWE-789 · CWE-1284
Tags: Erlang OTP
Memory corruption
Denial of service
CWE-1284
Published: 27 Jul 2026
Updated: 28 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
8.2	High	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (EEF)

CISA KEV Not listed.
EPSS 0.0042, the 36th 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 27 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/erlang/otp/security/advisories/GHSA-54pw-5645-jh86 vendor-advisoryrelated
cna.erlef.org/cves/CVE-2026-54890.html related
osv.dev/vulnerability/EEF-CVE-2026-54890 related
www.erlang.org/doc/system/versions.html#order-of-versions version-scheme
github.com/erlang/otp/commit/dc1bf9344c0ce62717cf60866590cea0242780fd 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.