How severe is CVE-2026-41205?

CVE-2026-41205 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-41205 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-41205?

CVE-2026-41205 affects Sqlalchemy Mako. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-41205?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-41205 have an EU (EUVD) identifier?

Yes. CVE-2026-41205 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25279.

When was CVE-2026-41205 published?

CVE-2026-41205 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-41205

CVE-2026-41205 is a high-severity vulnerability in Sqlalchemy Mako with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.7
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25279
Weakness: CWE-22
Affected product: Sqlalchemy Mako
Published: 2026-04-23
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-41205?: 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.
How severe is CVE-2026-41205?: CVE-2026-41205 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-41205 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-41205?: CVE-2026-41205 affects Sqlalchemy Mako. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-41205?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-41205 have an EU (EUVD) identifier?: Yes. CVE-2026-41205 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25279.
When was CVE-2026-41205 published?: CVE-2026-41205 was published on 2026-04-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sqlalchemy:mako:*:*:*:*:*:*:*:*

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