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Public proof of conceptAwaiting NVD analysis

CVE-2026-126481

OpenEMR before 8.5.0 Path Traversal via ERA 835 File Upload

A public proof of concept exists; no exploitation attested.

  • Published2026-11-13
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OpenEMR before 8.5.0 contains a path traversal vulnerability in era_payments.php and sl_eob_search.php that allows authenticated billing users to write files outside the ERA directory. Attackers can embed traversal sequences in the GS04 element of an uploaded X12 835 file to overwrite .edi or .835 files with attacker-controlled content anywhere writable by the web server.

Timeline

dates in UTC
  1. 2026-11-1309:34CVE publishedCNA

Versions per branch

Products declared by the CNA

As VulnCheck, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • openemrother versions: not affected
    Affected
    • < 8.5.0fixed in 8.5.0semver

    Not affected = 8.5.0

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-13

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-126481 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2026-11-13
  • CNACVSS 4.07.22026-11-13
  • CNACVSS 3.18.12026-11-13
  • NVDCVSS 3.18.1read 2026-11-13
  • CNAweakness (CWE)CWE-222026-11-13
  • NVDweakness (CWE)CWE-22read 2026-11-13
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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
Published
2026-11-13
Last Modified
2026-11-13
NVD status
Undergoing Analysis
GitHub Advisory
GHSA-h78g-9g6c-wm8r

Frequently asked questions

What is CVE-2026-126481?

OpenEMR before 8.5.0 contains a path traversal vulnerability in era_payments.php and sl_eob_search.php that allows authenticated billing users to write files outside the ERA directory. Attackers can embed traversal sequences in the GS04 element of an uploaded X12 835 file to overwrite .edi or .835 files with attacker-controlled content anywhere writable by the web server.

Is CVE-2026-126481 actively exploited?

A proof-of-concept exploit exists for CVE-2026-126481, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-126481?

CVE-2026-126481 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

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