CVE-2026-125871
What it is
The sourcecache expansion module in MISP Modules (misp-modules) contains a Server-Side Request Forgery (SSRF) vulnerability. When a user with permission to create or modify attributes of type 'link' or 'url' submits an attribute value, the module passes the URL directly to its internal archiving function without any validation of the target address. An attacker can therefore craft a URL pointing to loopback addresses (e.g., 127.0.0.1), private network ranges, link-local addresses, or cloud metadata endpoints (e.g., 169.254.169.254). The MISP server will issue an HTTP request to that target and store the response body in the event, effectively exfiltrating data from internal services to the attacker through the MISP interface. Non-HTTP schemes such as file:// are also accepted, potentially allowing local file disclosure. The vulnerability requires an authenticated MISP user with the ability to create or edit attributes of the affected types. The security impact is information disclosure from internal services reachable by the MISP server, including sensitive data such as cloud credentials, internal application data, or local files.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. Limited direct impact.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: not scored yet.
- Severity: 6.3 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Weakness
- CWE-20 · Improper input validation
- Record status
- Deferred
Attack profile CVSS 4.0 · 6.3
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- Low
- User interaction
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- None
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/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
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-125871.md and follow it. Check whether this project is affected by CVE-2026-125871. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
