CVE-2026-48860

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.2%
EPSS %ILE
10th
KEV
Not listed

Published

June 10, 2026

Last Modified

September 24, 2026

Advisory Details (5)

Auto-updated Jun 10, 2026
Patch available. Sources: github_commit, github.
generic

Versions — Erlang System Documentation v29.0.2

https://www.erlang.org/doc/system/versions.html#order-of-versions
generic

OSV - Open Source Vulnerabilities

https://osv.dev/vulnerability/EEF-CVE-2026-48860
githubMentions a patch (unverified)

Distribution-over-TLS LAN Allowlist is Silently Bypassed · Advisory · erlang/otp · GitHub

https://github.com/erlang/otp/security/advisories/GHSA-gp7x-mfv6-52cv
github_commit

commit 0209a6df65d6 (erlang/otp)

Fix landed in erlang/otp commit 0209a6df65d6 — awaiting tagged release

https://github.com/erlang/otp/commit/0209a6df65d605552b378273027b3968b35f26b4
generic

Distribution-over-TLS LAN allowlist silently bypassed due to sockname/peername confusion in inet_tls_dist | Erlang Ecosystem Foundation CNA

https://cna.erlef.org/cves/CVE-2026-48860.html

Vendor Advisories for CVE-2026-48860(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhaterlang27-main-27.3.4.17-1.hum12026-09-03redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
erlang1:23.2.6+dfsg-1 ... 1:29.0~rc3+dfsg-4 (117 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
erlang1:25.2.3+dfsg-1 ... 1:29.1.1+dfsg-1 (80 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
erlang1:27.3.4.1+dfsg-1, 1:27.3.4.1+dfsg-1+deb13u1, 1:27.3.4.1+dfsg-1+deb13u2
  • every version up to 1:27.3.4.1+dfsg-1+deb13u3: fixed in 1:27.3.4.1+dfsg-1+deb13u3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
erlang1:27.3.4.1+dfsg-1 ... 1:29.0~rc3+dfsg-4 (33 versions)
  • every version up to 1:29.0.2+dfsg-1: fixed in 1:29.0.2+dfsg-1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 192 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:25 UTCEPSS rescore
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 15:03 UTCEPSS rescore
  10. 2026-09-28 13:51 UTCEPSS rescore
  11. 2026-09-27 13:48 UTCEPSS rescore
  12. 2026-09-26 15:59 UTCEPSS rescore
  13. 2026-09-26 00:27 UTCEPSS rescore
  14. 2026-09-24 21:26 UTCEG score recompute
  15. 2026-09-24 21:26 UTCVendor advisory
  16. 2026-09-23 17:53 UTCEPSS rescore
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-16 14:08 UTCEPSS rescore
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-14 04:16 UTCEG score recompute
  22. 2026-09-14 04:16 UTCVendor advisory
  23. 2026-09-13 16:47 UTCEPSS rescore
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-10 09:35 UTCEPSS rescore
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  1. 2026-09-08 22:01 UTCEPSS rescore
  2. 2026-09-07 16:01 UTCEPSS rescore
  3. 2026-09-06 13:47 UTCEPSS rescore
  4. 2026-09-04 05:06 UTCEPSS rescore
  5. 2026-09-02 14:12 UTCEPSS rescore
  6. 2026-09-01 13:54 UTCEPSS rescore
  7. 2026-09-01 04:40 UTCEPSS rescore
  8. 2026-08-31 00:13 UTCEG score recompute
  9. 2026-08-31 00:13 UTCVendor advisory
  10. 2026-08-30 19:17 UTCEPSS rescore
  11. 2026-08-30 01:22 UTCEPSS rescore
  12. 2026-08-28 21:41 UTCEPSS rescore
  13. 2026-08-26 14:46 UTCEPSS rescore
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-25 00:24 UTCEG score recompute
  16. 2026-08-25 00:24 UTCVendor advisory
  17. 2026-08-23 10:47 UTCEG score recompute
  18. 2026-08-23 10:47 UTCVendor advisory
  19. 2026-08-21 23:49 UTCEPSS rescore
  20. 2026-08-21 19:18 UTCEG score recompute
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-20 17:17 UTCEG score recompute
  23. 2026-08-20 17:17 UTCVendor advisory
  24. 2026-08-19 17:04 UTCEPSS rescore
  25. 2026-08-19 14:57 UTCEG score recompute
  26. 2026-08-19 14:57 UTCVendor advisory
  27. 2026-08-18 13:48 UTCEPSS rescore
  28. 2026-08-17 13:47 UTCEPSS rescore
  29. 2026-08-17 13:41 UTCEG score recompute
  30. 2026-08-16 14:56 UTCEPSS rescore
  31. 2026-08-16 12:16 UTCEG score recompute
  32. 2026-08-16 12:16 UTCVendor advisory
  33. 2026-08-16 02:14 UTCEPSS rescore
  34. 2026-08-15 10:52 UTCEG score recompute
  35. 2026-08-15 10:52 UTCVendor advisory
  36. 2026-08-15 01:30 UTCEPSS rescore
  37. 2026-08-14 08:01 UTCEG score recompute
  38. 2026-08-14 08:01 UTCVendor advisory
  39. 2026-08-13 22:00 UTCEPSS rescore
  40. 2026-08-13 06:36 UTCEG score recompute
  41. 2026-08-13 06:36 UTCVendor advisory
  42. 2026-08-12 13:51 UTCEPSS rescore
  43. 2026-08-12 05:11 UTCEG score recompute
  44. 2026-08-12 05:11 UTCVendor advisory
  45. 2026-08-11 03:06 UTCEG score recompute
  46. 2026-08-11 03:06 UTCVendor advisory
  47. 2026-08-11 00:00 UTCEPSS rescore
  48. 2026-08-10 01:40 UTCEG score recompute
  49. 2026-08-09 13:46 UTCEPSS rescore
  50. 2026-08-09 00:16 UTCEG score recompute
  51. 2026-08-09 00:16 UTCVendor advisory
  52. 2026-08-08 16:37 UTCEPSS rescore
  53. 2026-08-07 22:51 UTCEG score recompute
  54. 2026-08-07 22:51 UTCVendor advisory
  55. 2026-08-06 21:26 UTCEG score recompute
  56. 2026-08-06 21:26 UTCVendor advisory
  57. 2026-08-06 13:47 UTCEPSS rescore
  58. 2026-08-05 20:01 UTCEG score recompute
  59. 2026-08-05 20:01 UTCVendor advisory
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-04 16:18 UTCEG score recompute
  62. 2026-08-04 16:18 UTCVendor advisory
  63. 2026-08-04 15:10 UTCEPSS rescore
  64. 2026-08-04 10:39 UTCEPSS rescore
  65. 2026-08-03 14:51 UTCEG score recompute
  66. 2026-08-03 10:36 UTCEPSS rescore
  67. 2026-08-02 11:06 UTCEG score recompute
  68. 2026-08-02 11:06 UTCVendor advisory
  69. 2026-08-02 02:27 UTCEPSS rescore
  70. 2026-08-01 09:41 UTCEG score recompute
  71. 2026-08-01 09:41 UTCVendor advisory
  72. 2026-08-01 04:16 UTCEPSS rescore
  73. 2026-07-31 00:43 UTCEG score recompute
  74. 2026-07-30 16:28 UTCEPSS rescore
  75. 2026-07-30 01:30 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-48860?
CVE-2026-48860 is a medium vulnerability published on June 10, 2026. Reliance on IP Address for Authentication vulnerability in Erlang/OTP ssl (inettlsdist module) allows unauthenticated bypass of the distribution-over-TLS LAN allowlist. The inettlsdist:checkip/1 function, which enforces a LAN allowlist for Erlang distribution over TLS, calls inet:sockname/1 instead…
When was CVE-2026-48860 disclosed?
CVE-2026-48860 was first published on June 10, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48860 actively exploited?
CVE-2026-48860 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48860?
CVE-2026-48860 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-48860?
A fix for CVE-2026-48860 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-48860 are linked in the Vendor Advisories panel on this page.

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