● Medium · CVSS 5.3

How to Fix CVE-2026-2863: Path traversal in ssm-erp

Q: What is the CVSS score for CVE-2026-2863?

5.3 (Medium). Vector: `CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`.

Q: Where is the official advisory for CVE-2026-2863?

The vendor advisory is at [https://vuldb.com/?id.347102](https://vuldb.com/?id.347102). The NVD record is at https://nvd.nist.gov/vuln/detail/CVE-2026-2863.

By Sai Kiran Pandrala. Last verified: 2026-05-25.

CVE-2026-2863 is a path traversal in feng_ha_ha ssm-erp. The fix is to apply the vendor patch noted below.

⚡ At a glance


Severity	5.3 (Medium)
Actively exploited?	No public listing in CISA KEV
Affected	ssm-erp 4288d53bd35757b27f2d070057aefb2c07bdd097; production_ssm 4288d53bd35757b27f2d070057aefb2c07bdd097; ssm-erp 4288d53bd35757b27f2d070057aefb2c07bdd097; production_ssm 4288d53bd35757b27f2d070057aefb2c07bdd097
Fixed in	See vendor advisory
Type (CWE)	CWE-22: Path Traversal

What is CVE-2026-2863?

A flaw has been found in feng_ha_ha/megagao ssm-erp and production_ssm up to 4288d53bd35757b27f2d070057aefb2c07bdd097. The impacted element is the function deleteFile of the file FileServiceImpl.java. This manipulation causes path traversal. The attack can be initiated remotely. The exploit has been published and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. This product is distributed under two entirely different names. The project was informed of the problem early through an issue report but has not responded yet. The CVSS base score is 5.3 (Medium). The official advisory is at https://vuldb.com/?id.347102.

Am I affected?

Check the version of ssm-erp you are running and compare it against the Affected row above (ssm-erp 4288d53bd35757b27f2d070057aefb2c07bdd097; production_ssm 4288d53bd35757b27f2d070057aefb2c07bdd097; ssm-erp 4288d53bd35757b27f2d070057aefb2c07bdd097; production_ssm 4288d53bd35757b27f2d070057aefb2c07bdd097). If your build sits inside the affected range, you must patch.

Run the version check that fits your platform:


# Linux package check
dpkg -s ssm-erp 2>/dev/null | grep -i ^Version
rpm -q ssm-erp 2>/dev/null
command -v ssm-erp >/dev/null && ssm-erp --version 2>/dev/null


# Windows (PowerShell)
Get-Package -Name "*ssm-erp*" -ErrorAction SilentlyContinue | Select-Object Name, Version
winget list --name "ssm-erp" 2>$null

How to fix CVE-2026-2863

Upgrade ssm-erp to a patched build: See vendor advisory. The vendor advisory is the source of truth for the exact fixed version.

Ubuntu / Debian


sudo apt-get update
sudo apt-get install --only-upgrade ssm-erp
dpkg -s ssm-erp | grep -i ^Version

RHEL / CentOS / Rocky / AlmaLinux


sudo dnf upgrade --refresh ssm-erp -y
# or for older releases:
sudo yum update ssm-erp -y
rpm -q ssm-erp

SUSE / openSUSE


sudo zypper refresh
sudo zypper update ssm-erp
rpm -q ssm-erp

Node.js / npm


# Update the affected package in your project
npm install ssm-erp@latest
npm ls ssm-erp
npm audit fix

Complete PowerShell remediation script (Windows)


# Fix script for CVE-2026-2863 affecting ssm-erp
# Run as administrator. Detect -> backup -> upgrade -> verify -> log.

$ErrorActionPreference = "Stop"
$LogPath  = "C:\Logs\CVE-2026-2863-fix-$(Get-Date -Format yyyyMMdd-HHmmss).log"
New-Item -ItemType Directory -Force (Split-Path $LogPath) | Out-Null
Start-Transcript -Path $LogPath -Append

try {
    Write-Host "[1/4] Detect installed version"
    $pkg = Get-Package -Name "*ssm-erp*" -ErrorAction SilentlyContinue
    if ($pkg) { $pkg | Format-Table Name, Version }
    else { Write-Host "Not detected via Get-Package; try winget list" }

    Write-Host "[2/4] Backup configuration"
    $backup = "C:\Backup\ssm-erp-$(Get-Date -Format yyyyMMdd)"
    New-Item -ItemType Directory -Force $backup | Out-Null
    Get-ChildItem "C:\ProgramData\ssm-erp" -ErrorAction SilentlyContinue |
        Copy-Item -Destination $backup -Recurse -Force -ErrorAction SilentlyContinue

    Write-Host "[3/4] Apply the upgrade to See vendor advisory"
    winget upgrade --name "ssm-erp" --silent --accept-source-agreements --accept-package-agreements
    if ($LASTEXITCODE -ne 0) {
        # Fallback: pull latest via OS update channel
        Install-Module -Name PSWindowsUpdate -Force -SkipPublisherCheck -ErrorAction SilentlyContinue
        Import-Module PSWindowsUpdate
        Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -IgnoreReboot
    }

    Write-Host "[4/4] Verify the patched build"
    winget list --name "ssm-erp"
    Write-Host "Patch applied. Reboot if prompted."
    exit 0
} catch {
    Write-Error "Patch failed: $_"
    exit 1
} finally {
    Stop-Transcript
}

Complete Bash remediation script (Linux)


#!/usr/bin/env bash
# Fix script for CVE-2026-2863 affecting ssm-erp
# Detect -> backup -> upgrade -> verify -> log.

set -euo pipefail
LOG="/var/log/cve-2026-2863-fix-$(date +%Y%m%d-%H%M%S).log"
exec > >(tee -a "$LOG") 2>&1

echo "[1/4] Detect installed version"
if command -v dpkg >/dev/null; then
    dpkg -s ssm-erp 2>/dev/null | grep -i ^Version || echo "ssm-erp not installed via dpkg"
elif command -v rpm >/dev/null; then
    rpm -q ssm-erp || echo "ssm-erp not installed via rpm"
fi

echo "[2/4] Backup configuration"
BACKUP="/root/backup-cve-2026-2863-$(date +%Y%m%d)"
mkdir -p "$BACKUP"
for d in /etc/ssm-erp /etc/ssm-erp.d /etc/ssm-erp.conf; do
    [ -e "$d" ] && cp -a "$d" "$BACKUP/" || true
done

echo "[3/4] Apply the upgrade (target: See vendor advisory)"
if command -v apt-get >/dev/null; then
    apt-get update
    apt-get install --only-upgrade -y ssm-erp
elif command -v dnf >/dev/null; then
    dnf upgrade --refresh -y ssm-erp
elif command -v yum >/dev/null; then
    yum update -y ssm-erp
elif command -v zypper >/dev/null; then
    zypper --non-interactive update ssm-erp
fi

echo "[4/4] Verify the patched build"
if command -v dpkg >/dev/null; then
    dpkg -s ssm-erp 2>/dev/null | grep -i ^Version
elif command -v rpm >/dev/null; then
    rpm -q ssm-erp
fi
echo "Done. Restart any service that loaded the old library."

If you can't patch immediately

Apply at least one of the following inline controls until you can deploy the patched build. None replace the upgrade.

Restrict exposure with nftables (Linux)


# Allow only trusted CIDR to reach the affected service ports
sudo nft add table inet filter 2>/dev/null || true
sudo nft 'add chain inet filter input { type filter hook input priority 0 ; }' 2>/dev/null || true
sudo nft 'add rule inet filter input tcp dport {80, 443} ip saddr != 10.0.0.0/8 drop'
sudo nft list ruleset

Block at the host firewall (Windows)


New-NetFirewallRule -DisplayName "Block-CVE-2026-2863" -Direction Inbound -Action Block -Protocol TCP -LocalPort 80,443 -RemoteAddress Any -Enabled True
Get-NetFirewallRule -DisplayName "Block-CVE-2026-2863"

Disable the affected service (Linux)


sudo systemctl stop ssm-erp 2>/dev/null || true
sudo systemctl disable ssm-erp 2>/dev/null || true

If the vendor advisory lists an official workaround, prefer that wording verbatim. If no workaround is published, the only safe remediation is the patch.

How to verify the fix worked

After upgrading, confirm the installed version matches the patched build and that no old library is still loaded by a long-running process.


# Linux
dpkg -s ssm-erp 2>/dev/null | grep -i ^Version
rpm -q ssm-erp 2>/dev/null || true
# Pid map check for old library handles
sudo lsof +c0 2>/dev/null | grep -i "DEL.*lib" || true


# Windows
Get-Package -Name "*ssm-erp*" | Select-Object Name, Version
Get-HotFix | Sort-Object InstalledOn -Descending | Select-Object -First 5

Expected: the reported version is at or above See vendor advisory. Restart the affected service (systemctl restart <service> on Linux, or restart the Windows service) so it loads the patched binary.

Frequently asked questions

Other vulnerabilities in the same area that are worth patching alongside this one:

How to Fix CVE-2026-41934: Incomplete List of Disallowed Inputs in Vvveb — Incomplete List of Disallowed Inputs in Vvveb
How to Fix CVE-2026-26953: Input Validation Flaw in web — Input Validation Flaw in web
How to Fix CVE-2026-34374: SQL Injection in AVideo , SQL Injection in AVideo
How to Fix CVE-2026-3691: Information disclosure in OpenClaw , Information disclosure in OpenClaw
How to Fix CVE-2026-6599: Injection in langflow , Injection in langflow

Is CVE-2026-2863 actively exploited?

There is no public confirmation of exploitation in the wild listed in CISA KEV at the time of this writing. Patch anyway. Public exploits commonly follow disclosure within weeks.

Do I need to reboot after patching CVE-2026-2863?

For kernel and OS-level updates, yes. For most userland packages a systemctl restart <service> is enough on Linux, and restarting the Windows service or app on Windows. Any process that loaded the old library keeps using it until restarted.

What is the CVSS score for CVE-2026-2863?

5.3 (Medium). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P.

Where is the official advisory for CVE-2026-2863?

The vendor advisory is at https://vuldb.com/?id.347102. The NVD record is at https://nvd.nist.gov/vuln/detail/CVE-2026-2863.

References

Official vendor advisory: https://vuldb.com/?id.347102
NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2863
CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Additional reference: https://vuldb.com/?ctiid.347102
Additional reference: https://vuldb.com/?submit.754530
Additional reference: https://github.com/megagao/production_ssm/issues/37

*Written by Sai Kiran Pandrala. Assembled from the official vendor advisory, NVD record, and CISA KEV listing on 2026-05-25. Always confirm against the vendor's advisory before applying changes in production.*