CVE-2026-45754
Last modified
CVE-2026-45754 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, the Mailjet mailer bridge and LOX24 notifier bridge webhook parsers received configured webhook secrets but did not verify them, allowing unauthenticated POST requests to inject forged Mailjet and LOX24 event payloads. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 6.4.40, 7.4.12, and 8.0.12, the Mailjet mailer bridge and LOX24 notifier bridge webhook parsers received configured webhook secrets but did not verify them, allowing unauthenticated POST requests to inject forged Mailjet and LOX24 event payloads. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sensiolabs | Symfony | >= 6.4.0, < 6.4.40 |
| Sensiolabs | Symfony | >= 7.0.0, < 7.4.12 |
| Sensiolabs | Symfony | >= 8.0.0, < 8.0.12 |
References
- https://github.com/symfony/symfony/security/advisories/GHSA-64hg-93w9-fc35Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-45754?
How severe is CVE-2026-45754?
How do I fix CVE-2026-45754?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-45746Termix is a web-based server management platform with SSH te…9
- CVE-2026-45748Termix is a web-based server management platform with SSH te…9.8
- CVE-2026-45749Termix is a web-based server management platform with SSH te…8.1
- CVE-2026-4575A flaw has been found in code-projects Exam Form Submission …2.4
- CVE-2026-45750Termix is a web-based server management platform with SSH te…9
- CVE-2026-45753Symfony is a PHP framework for web and console applications …6.1
- CVE-2026-45755Symfony is a PHP framework for web and console applications …5.3
- CVE-2026-45756Symfony is a PHP framework for web and console applications …7.5
- CVE-2026-45757Rocket.Chat is an open-source, secure, fully customizable co…2.3
- CVE-2026-45758Guardrails AI is a Python framework that helps build AI appl…9.6
- CVE-2026-4576A vulnerability has been found in code-projects Exam Form Su…2.4
- CVE-2026-45760(Externally Controlled Reference to a Resource in Another Sp…8.1
Are you affected by CVE-2026-45754?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST