Skip to content
Noroxi
NVD / CVE Program· CNA EEF

CVE-2026-48860: Distribution-over-TLS LAN allowlist silently bypassed due to sockname/peername confusion in inet_tls_dist

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Someone on the same network segment can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Erlang OTP 0209a6df65d605552b378273027b3968b35f26b4, 11.2.12.9, 11.6.0.2; azl3 erlang 26.2.5.20-1 on Azure Linux 3.0 26.2.5.21-2.

Low priority for now. Upgrade to Erlang OTP 0209a6df65d605552b378273027b3968b35f26b4, 11.2.12.9, 11.6.0.2; azl3 erlang 26.2.5.20-1 on Azure Linux 3.0 26.2.5.21-2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Reliance on IP Address for Authentication vulnerability in Erlang/OTP ssl (inet_tls_dist module) allows unauthenticated bypass of the distribution-over-TLS LAN allowlist. The inet_tls_dist:check_ip/1 function, which enforces a LAN allowlist for Erlang distribution over TLS, calls inet:sockname/1 instead of inet:peername/1 to obtain the peer's IP address. Because inet:sockname/1 returns the local socket address, both the local IP and the supposed peer IP resolve to the same value, causing the subnet mask comparison to always succeed regardless of the actual remote address. Any holder of a CA-signed TLS certificate can therefore bypass the LAN restriction and gain full Erlang distribution access to the node, including rpc:call/4 and code:load_binary/3. This vulnerability is associated with program file lib/ssl/src/inet_tls_dist.erl. This issue affects OTP from OTP 26.0 before OTP 27.3.4.13, OTP 28.5.0.2, and OTP 29.0.2, corresponding to ssl from 11.0 before 11.2.12.9, 11.6.0.2, and 11.7.2.

HighCVSS 7.5 · v4.0—No exploit Fix available
Published
Jun 10, 2026
Updated
Oct 26, 2026
EPSS
0.2% · 11th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · EEF
7.5
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-48860

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for erlang records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
erlangerlang/otp
erlangerlang/ssl

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • erlang erlang/otp26.0 and later · before 27.3.4.13
  • erlang erlang/otp28.0 and later · before 28.5.0.2
  • erlang erlang/otp29.0 and later · before 29.0.2
  • erlang erlang/ssl11.0 and later · before 11.2.12.9
  • erlang erlang/ssl11.6 and later · before 11.6.0.2
  • erlang erlang/ssl11.7 and later · before 11.7.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (EEF). Independent of NVD's CPE analysis and usually ahead of it.

  • Erlang OTP

    • 26.0 and lateraffected · otpfixed in 27.3.4.13, 28.5.0.2, 29.0.2
    • 11.0 and lateraffected · otpfixed in 11.2.12.9, 11.6.0.2, 11.7.2
    • 7a08c5507862a7011568506d0c17b1fdef30bee4 and later · before 0209a6df65d605552b378273027b3968b35f26b4affected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12erlangfrom 0—
Debian:13erlangbefore 1:27.3.4.1+dfsg-1+deb13u31:27.3.4.1+dfsg-1+deb13u3
Debian:14erlangbefore 1:29.0.2+dfsg-11:29.0.2+dfsg-1
openSUSE:Tumbleweederlangbefore 28.5.0.4-1.128.5.0.4-1.1
openSUSE:Tumbleweederlang27before 27.1.3-3.127.1.3-3.1
Red Hat:hummingbird:1erlang27before 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-asn1before 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-common_testbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-compilerbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-cryptobefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-debuggerbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-dialyzerbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-diameterbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-edocbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-eldapbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-erl_interfacebefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-ertsbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-etbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-eunitbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-examplesbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-ftpbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-gdb-toolsbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-inetsbefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1
Red Hat:hummingbird:1erlang27-jinterfacebefore 0:27.3.4.17-1.hum10:27.3.4.17-1.hum1

+21

Same product

erlang: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-55953TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication
    36Monitor
  • CVE-2026-49759Stack buffer overflow in SCTP error cause parsing in inet_drv allows remote VM crash
    35Monitor
  • CVE-2026-59251Denial of service via exponential certificate policy tree growth in path validation
    34Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-48855Jun 10, 2026 · SFTP READLINK Leaks Absolute Backend Filesystem Path When Root Is Configured
    9Monitor
  • ← EarlierCVE-2026-48859Jun 10, 2026 · SSH server timing side-channel in ssh_auth:check_password/3 allows unauthenticated username enumeration
    25Monitor
  • Later →CVE-2026-53422Jul 2, 2026 · SFTP REALPATH path-existence oracle allowing filesystem enumeration outside configured root
    9Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Erlang OTP0209a6df65d605552b378273027b3968b35f26b4Vendor (CNA)
Erlang OTP11.2.12.9Vendor (CNA)
Erlang OTP11.6.0.2Vendor (CNA)
Erlang OTP11.7.2Vendor (CNA)
Erlang OTP27.3.4.13Vendor (CNA)
Erlang OTP28.5.0.2Vendor (CNA)
Erlang OTP29.0.2Vendor (CNA)
azl3 erlang 26.2.5.20-1 on Azure Linux 3.026.2.5.21-2 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:erlang1:27.3.4.1+dfsg-1+deb13u3 · Debian:13Package registry (OSV)
opensuse:erlang28.5.0.4-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:erlang2727.1.3-3.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:erlang270:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-asn10:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-common_test0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-compiler0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-crypto0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-debugger0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-dialyzer0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-diameter0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-edoc0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-eldap0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-erl_interface0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
red hat:erlang27-erts0:27.3.4.17-1.hum1 · Red Hat:hummingbird:1Package registry (OSV)
suse:erlang2626.2.1-150300.7.28.1 · SUSE:Linux Enterprise Module for Server Applications 15 SP7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability
Attack vector
Adjacent
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-863 · Incorrect Authorization

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records