High 7.7Published Apr 23, 2026

CVE-2026-41205Mako: Path traversal via double-slash URI prefix in TemplateLookup

Updated under an hour ago (Oct 26, 2026, 7:23 AM ET)

Does this affect you?

It affects sqlalchemy mako. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for sqlalchemy mako

Exploited in the last 30 days

Mako is a template library written in Python. Prior to 1.3.11, TemplateLookup.get_template() is vulnerable to path traversal when a URI starts with // (e.g., //../../../secret.txt). The root cause is an inconsistency between two slash-stripping implementations. Any file readable by the process can be returned as rendered template content when an application passes untrusted input directly to TemplateLookup.get_template(). This vulnerability is fixed in 1.3.11.

CVSS: 7.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: May 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

sqlalchemy mako sqlalchemy:mako (from the name)	before 1.3.11	CNA record
sqlalchemy mako sqlalchemy:mako	before 1.3.11	NVD

References

https://github.com/sqlalchemy/mako/security/advisories/GHSA-v92g-xgxw-vvmmx-refsource-confirm, mitigation, vendor-advisory
https://github.com/sqlalchemy/mako/commit/e05ac61989a7fb9dd7dcde6cfd72dc48328719a3x-refsource-misc
https://github.com/sqlalchemy/mako/releases/tag/rel_1_3_11x-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.