critical CVSS 9.8

CVE-2026-25241·PHP vulnerability

PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, an unauthenticated SQL injection in the /get/<package>/<version> endpoint allows remote attackers to execute arbitrary SQL via a crafted package version. This issue has been patched in version 1.33.0.

Severity
critical
Software
PHP
Fixed in
1.33.0
Published
2026-02-03

Affected versions

Until: 1.33.0

Fixed in: 1.33.0

How to fix this CVE

Update PHP and the PEAR framework to version 1.33.0 or later to patch an unauthenticated SQL injection vulnerability in the package version endpoint. Organizations running PEAR-dependent applications should prioritize this update to eliminate the risk of remote database compromise. Verify the patch installation by confirming the updated version is active across all production and staging environments.

sudo dnf update php

Defensia detects this vulnerability

What an exploitation attempt looks like

Sample log line indicative of exploitation attempts:

GET|POST /get/[a-zA-Z0-9_-]+/[^\s]*(union|select|insert|update|delete|drop|exec|script)[^\s]*\s

WAF mitigation (if patching is not yet possible)

Add this rule to your WAF to block exploitation attempts while you schedule the patch. 

Implement input validation rules on the /get/<package>/<version> endpoint to reject version parameters containing SQL keywords (union, select, insert, etc.) and special characters outside alphanumeric ranges. Additionally, enforce URL encoding validation and apply SQL parameterized query rules at the WAF layer to block injection attempts before they reach the backend.

How to check if you are affected

  1. Step 1: Check installed PHP version with: php -v
  2. Step 2: Verify PEAR is installed and check its version: pear -V | grep PEAR
  3. Step 3: Search web server access logs for requests to the /get/ endpoint pattern: grep -i '/get/' /var/log/apache2/access.log or /var/log/nginx/access.log
  4. Step 4: After patching, re-run php -v and pear -V to confirm version 1.33.0 or later is active

FAQ

What is CVE-2026-25241?

CVE-2026-25241 is a critical SQL injection flaw in PEAR's package distribution endpoint that allows unauthenticated attackers to inject malicious SQL queries through crafted package version parameters, potentially leading to unauthorized database access and modification.

Is CVE-2026-25241 being actively exploited?

No—this vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities catalog, and no public exploits have been disclosed. However, its critical CVSS score (9.8) warrants immediate patching.

What versions of PHP are affected by CVE-2026-25241?

PEAR versions prior to 1.33.0 are affected. Check your installed version with 'pear -V' to determine exposure.

How do I check if my server is vulnerable to CVE-2026-25241?

Run 'pear -V' to display the installed PEAR version. If it is below 1.33.0, your system is vulnerable. Additionally, check for the presence of the PEAR /get/ endpoint in your web application.

Does Defensia detect CVE-2026-25241?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If PHP and PEAR are installed on a monitored server, CVE-2026-25241 will appear in your dashboard with remediation steps.

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References

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