CVE-2016-10745

In Pallets Jinja before 2.8.1, str.format allows a sandbox escape.

Published: 2019-04-08 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-10745 is rated High Risk (67.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.49%). Core evidence: EPSS rose +2.51% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-10745

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.98% 3.49% +2.51%
2 2025-03-30 4.89% 0.98% -3.90%
3 2025-03-29 4.89%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-10745

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.6 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 4.0 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2016-10745

GitHub Security Advisory for CVE-2016-10745

GHSA-hj2j-77xm-mc5v · Severity: high · Ecosystem: pip — Jinja2 sandbox escape vulnerability

OS Trackers for CVE-2016-10745

vendor priority summary link
debian not yet assigned CVE-2016-10745 not yet assigned priority: Debian including 1 source packages (jinja2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-10745
redhat high https://access.redhat.com/security/cve/CVE-2016-10745
suse high CVE-2016-10745 severity important: SUSE including 390 source package names (1.8.6.0.3.2.5:python3-Jinja2-2.10.1-3.5.1, 15.2.3.579.3.383:python3-Jinja2-2.10.1-3.5.1, …), 813 product×package rows across 306 product lines (Container ses/7.1/cephcsi/cephcsi, Container ses/7.1/rook/ceph, … (306 product lines)): Fixed 632, Known Affected 181. https://www.suse.com/security/cve/CVE-2016-10745/
ubuntu medium CVE-2016-10745 medium priority: Ubuntu including 1 source packages (jinja2), 6 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): not-affected 3, released 3. https://ubuntu.com/security/CVE-2016-10745

Affected software / configurations for CVE-2016-10745

Vendor Product Version Raw CPE
palletsprojects jinja < 2.8.1 cpe:2.3:a:palletsprojects:jinja:*:*:*:*:*:*:*:*

References for CVE-2016-10745

cvelogic Threat Intelligence