Is CVE-2026-125871 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-125871 being exploited in the wild.

How severe is CVE-2026-125871?

Informational severity, published 10 November 2026.

Which products and versions are affected?

Misp-Modules all versions prior to patch.

How is CVE-2026-125871 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-125871?

Check whether you run Misp-Modules at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-125871: MISP Modules sourcecache SSRF in URL validation

CVE-2026-125871 · Severity: info · Published 2026-11-10

MISP Modules is a collection of expansion tools used by MISP, an open-source threat intelligence platform. The sourcecache module fails to validate URLs before archiving them, allowing an authenticated attacker to make the MISP server fetch content from internal services (like cloud metadata endpoints or private networks) and expose sensitive data through the platform interface.

Technologies: Misp-Modules. Vendors: Misp.

Quick answers

Is CVE-2026-125871 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-125871 being exploited in the wild.
How severe is CVE-2026-125871?: Informational severity, published 10 November 2026.
Which products and versions are affected?: Misp-Modules all versions prior to patch.
Is there a fix for CVE-2026-125871?: Yes: fixed in Commit 7cb31e96a1f59bec9afbc087b27b26d9986c6841. Until then: Restrict the ability to create or modify link and url attributes to trusted users only, or disable the sourcecache expansion module if internal network protection is critical pending patched version deployment. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-125871 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-125871?: Check whether you run Misp-Modules at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: Commit 7cb31e96a1f59bec9afbc087b27b26d9986c6841

Restrict the ability to create or modify link and url attributes to trusted users only, or disable the sourcecache expansion module if internal network protection is critical pending patched version deployment.

Technical details

The sourcecache expansion module passes user-supplied link or url attribute values directly to an archiving function without validation, enabling Server-Side Request Forgery (SSRF) attacks. An authenticated user can craft URLs targeting loopback addresses (127.0.0.1), private network ranges, link-local addresses (169.254.169.254), or file:// schemes to exfiltrate internal service responses and local files. The fix validates that only http/https URLs with globally routable hostnames are fetched.

Affected products

MISP misp-modules all versions prior to patch

Timeline

2026-11-10: disclosed

References

https://github.com/MISP/misp-modules/commit/7cb31e96a1f59bec9afbc087b27b26d9986c6841

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