MEDIUM CVSS 4.0
Published: 2026-04-03

CVE-2026-2625

redhat hardened_images Security Advisory (CVE-2026-2625)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2026-2625 impacting redhat hardened_images. Evaluated with CVSS Base Score of 4.0 (MEDIUM).

Original NVD Description

Source: NIST NVD
A flaw was found in rust-rpm-sequoia. An attacker can exploit this vulnerability by providing a specially crafted Red Hat Package Manager (RPM) file. During the RPM signature verification process, this crafted file can trigger an error in the OpenPGP signature parsing code, leading to an unconditional termination of the rpm process. This issue results in an application level denial of service, making the system unable to process RPM files for signature verification.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
None (I:N)
No system modification impact
Availability
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product redhat / hardened_images
Affected Versions -
Weakness Enumeration CWE-347

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2026-2625 impacting redhat hardened_images.

⚡ Nuclei Detection Template (YAML) cve-2026-2625.yaml
id: cve-2026-2625

info:
  name: redhat hardened_images - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2026-2625 affecting redhat hardened_images.
    Evaluation: A flaw was found in rust-rpm-sequoia. An attacker can exploit this vulnerability by providing a specially crafted Red Hat Package Manager (RPM) file. ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2026-2625
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    cvss-score: 4.0
    cve-id: CVE-2026-2625
    cwe-id: CWE-347
  tags: cve,cve-2026-2625,redhat,hardened_images,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "hardened_images"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2026-2625.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2026-2625
# Target: redhat hardened_images | CVSS: 4.0 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2026-2625 (redhat hardened_images)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against redhat hardened_images scope (-).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2026-2625.sh
# Recommended Remediation & Patching Commands for CVE-2026-2625
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install hardened_images 2>/dev/null || \
sudo dnf upgrade hardened_images 2>/dev/null || \
sudo yum update hardened_images

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i hardened_images 2>/dev/null || rpm -qa | grep -i hardened_images

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities
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Technical Analysis
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❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2026-2625 in redhat hardened_images?

Review vendor-specific security notices and update redhat hardened_images packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2026-2625?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2026-2625?

CVE-2026-2625 is classified with a CVSS 3.1 Base Score of 4.0 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.0
MEDIUM SEVERITY
CVE ID CVE-2026-2625
Weakness CWE-347
Vendor redhat
Product hardened_images
Published 2026-04-03
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L