CVE-2026-48860

Distribution access via wrong peer address lookup

Published Jun 10, 2026 · Updated Jun 10, 2026

Authorization bypass in Erlang/OTP allows remote authenticated users to gain full distribution access through TLS distribution. inet_tls_dist:check_ip/1 reads the peer address with inet:sockname/1, so it compares the local address with itself and always accepts the LAN subnet check. Exploitation requires TLS distribution, check_ip enabled, and a certificate from a CA trusted by the cluster; successful access permits RPC calls and code loading.

CVSS severity7.5
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authorization bypass in Erlang/OTP allows remote authenticated users to gain full distribution access through TLS distribution. inet_tls_dist:check_ip/1 reads the peer address with inet:sockname/1, so it compares the local address with itself and always accepts the LAN subnet check. Exploitation requires TLS distribution, check_ip enabled, and a certificate from a CA trusted by the cluster; successful access permits RPC calls and code loading.

The record

CVE
CVE-2026-48860
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
Erlang
Product
Erlang/OTP
Classifications
CWE-1025, CWE-863, CAPEC-1, CAPEC-115, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.0 <* changes=[{"at":"11.7.2","status":"unaffected"},{"at":"11.6.0.2","status":"unaffected"},{"at":"11.2.12.9","status":"unaffected"}]
  2. Affected versionversion=26.0 <* changes=[{"at":"29.0.2","status":"unaffected"},{"at":"28.5.0.2","status":"unaffected"},{"at":"27.3.4.13","status":"unaffected"}]
  3. Affected versionversion=7a08c5507862a7011568506d0c17b1fdef30bee4 <0209a6df65d605552b378273027b3968b35f26b4

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Erlang · Erlang/OTPversion=11.0 <* changes=[{"at":"11.7.2","status":"unaffected"},{"at":"11.6.0.2","status":"unaffected"},{"at":"11.2.12.9","status":"unaffected"}]; version=26.0 <* changes=[{"at":"29.0.2","status":"unaffected"},{"at":"28.5.0.2","status":"unaffected"},{"at":"27.3.4.13","status":"unaffected"}]; version=7a08c5507862a7011568506d0c17b1fdef30bee4 <0209a6df65d605552b378273027b3968b35f26b4

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.5Erlang Ecosystem FoundationCVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1025Comparison Using Wrong Factors
CWE-863Incorrect Authorization
CAPEC-1Accessing Functionality Not Properly Constrained by ACLs
CAPEC-115Authentication Bypass
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo