MEDIUM CVSS 5.7
Published: 2026-01-08

CVE-2025-68158

authlib authlib Security Advisory (CVE-2025-68158)
โ†— Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2025-68158?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-68158 impacting authlib authlib. Evaluated with CVSS Base Score of 5.7 (MEDIUM).

Original NVD Description

Source: NIST NVD
Authlib is a Python library which builds OAuth and OpenID Connect servers. In versions 1.0.0 through 1.6.5, cache-backed state/request-token storage is not tied to the initiating user session, so CSRF is possible for any attacker that has a valid state (easily obtainable via an attacker-initiated authentication flow). When a cache is supplied to the OAuth client registry, FrameworkIntegration.set_state_data writes the entire state blob under _state_{app}_{state}, and get_state_data ignores the callerโ€™s session altogether. This issue has been patched in version 1.6.6.

๐Ÿ“Š CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

๐ŸŽฏ Affected Versions Matrix

Affected Product authlib / authlib
Affected Versions *
Weakness Enumeration CWE-352

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-2025-68158 impacting authlib authlib.

โšก Nuclei Detection Template (YAML) cve-2025-68158.yaml
id: cve-2025-68158

info:
  name: authlib authlib - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-68158 affecting authlib authlib.
    Evaluation: Authlib is a Python library which builds OAuth and OpenID Connect servers. In versions 1.0.0 through 1.6.5, cache-backed state/request-token storage i...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-68158
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
    cvss-score: 5.7
    cve-id: CVE-2025-68158
    cwe-id: CWE-352
  tags: cve,cve-2025-68158,authlib,authlib,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "authlib"
        part: body
๐Ÿ PoC Exploit & Verification Probe (Python 3) poc_cve-2025-68158.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-68158
# Target: authlib authlib | CVSS: 5.7 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-68158 (authlib authlib)...")
    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 authlib authlib 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)
๐Ÿ›ก๏ธ Quick Patch & Remediation Script (Bash) patch_cve-2025-68158.sh
# Recommended Remediation & Patching Commands for CVE-2025-68158
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install authlib 2>/dev/null || \
sudo dnf upgrade authlib 2>/dev/null || \
sudo yum update authlib

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

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

๐Ÿ›ก๏ธ 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.
โš ๏ธ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

โ“ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-68158 in authlib authlib?

Review vendor-specific security notices and update authlib authlib 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-2025-68158?

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-2025-68158?

CVE-2025-68158 is classified with a CVSS 3.1 Base Score of 5.7 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.7
MEDIUM SEVERITY
CVE ID CVE-2025-68158
Weakness CWE-352
Vendor authlib
Product authlib
Published 2026-01-08
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N