High 7.3Published Oct 8, 2026

CVE-2026-107716Banks: Symlink traversal and arbitrary file disclosure/overwrite in DirectoryPromptRegistry

Updated under an hour ago (2026-10-19 06:30 UTC)

Does this affect you?

It affects masci banks. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.13%, higher than 3% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for masci banks

Exploited in the last 30 days

Banks generates meaningful LLM prompts using a simple template language. Prior to 2.5.1, Banks DirectoryPromptRegistry does not reject symbolic links for index.json or discovered and existing .jinja prompt files. In an application where untrusted users can influence a prompt directory, DirectoryPromptRegistry._scan() and DirectoryPromptRegistry.get() can follow a link outside the registry root and disclose a file, while DirectoryPromptRegistry.set(), DirectoryPromptRegistry._save(), and DirectoryPromptRegistry._load() can read or overwrite an external link target. The issue requires attacker influence over the registry directory or its extracted contents. This issue is fixed in version 2.5.1.

CVSS: 7.3 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Weakness (CWE): CWE-22, CWE-59
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.13% (percentile 3)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

masci banks masci:banks (from the name)	before 2.5.1	CNA record

References

https://github.com/masci/banks/security/advisories/GHSA-556j-vv39-8rqvx-refsource-confirm
https://github.com/masci/banks/pull/79x-refsource-misc
https://github.com/masci/banks/commit/23ed13e50b4e217693fa5f9c30943fac8a41582fx-refsource-misc
https://github.com/masci/banks/releases/tag/v2.5.1x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.