In Pallets Jinja before 2.8.1, str.format allows a sandbox escape.
- Published
- Apr 8, 2019
- Updated
- Jun 16, 2026
- EPSS
- 3.5% · 89th percentile
- CWE
- CWE-134
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
35
Monitor
Low priority for now.
- CVSS
- 34 / 40 · 8.6 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.5%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| palletsprojects | jinja | cpe:2.3:a:palletsprojects:jinja |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- palletsprojects jinjabefore 2.8.1
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | jinja2 | before 2.9.4-1 | 2.9.4-1 |
| openSUSE:Leap 15.0 | python-Jinja2 | before 2.10.1-lp150.2.3.1 | 2.10.1-lp150.2.3.1 |
| openSUSE:Tumbleweed | python-Jinja2 | before 3.1.4-1.1 | 3.1.4-1.1 |
| openSUSE:Tumbleweed | python-Jinja2 | before 3.0.1-3.2 | 3.0.1-3.2 |
| PyPI | jinja2 | before 2.8.1 | 2.8.1 |
| Red Hat:enterprise_linux:7::client | python-jinja2 | before 0:2.7.2-3.el7_6 | 0:2.7.2-3.el7_6 |
| Red Hat:rhel_aus:7.4::server | python-jinja2 | before 0:2.7.2-3.el7_4 | 0:2.7.2-3.el7_4 |
| Red Hat:rhel_eus:7.5::computenode | python-jinja2 | before 0:2.7.2-3.el7_5 | 0:2.7.2-3.el7_5 |
| Red Hat:rhel_software_collections:3::el6 | python27-python | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-debug | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-debuginfo | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-devel | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-jinja2 | before 0:2.6-12.el6 | 0:2.6-12.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-libs | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-test | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-python-tools | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | python27-tkinter | before 0:2.7.16-4.el6 | 0:2.7.16-4.el6 |
| Red Hat:rhel_software_collections:3::el6 | rh-python35-python-jinja2 | before 0:2.8.1-2.el6 | 0:2.8.1-2.el6 |
| Red Hat:rhel_software_collections:3::el7 | python27-python | before 0:2.7.16-4.el7 | 0:2.7.16-4.el7 |
| Red Hat:rhel_software_collections:3::el7 | python27-python-debug | before 0:2.7.16-4.el7 | 0:2.7.16-4.el7 |
| Red Hat:rhel_software_collections:3::el7 | python27-python-debuginfo | before 0:2.7.16-4.el7 | 0:2.7.16-4.el7 |
| Red Hat:rhel_software_collections:3::el7 | python27-python-devel | before 0:2.7.16-4.el7 | 0:2.7.16-4.el7 |
| Red Hat:rhel_software_collections:3::el7 | python27-python-jinja2 | before 0:2.6-15.el7 | 0:2.6-15.el7 |
| Red Hat:rhel_software_collections:3::el7 | python27-python-libs | before 0:2.7.16-4.el7 | 0:2.7.16-4.el7 |
+96
Same product
palletsprojects: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-10906In Pallets Jinja before 2.10.1, str.format_map allows a sandbox escape.35Monitor
- CVE-2024-22195Jinja vulnerable to Cross-Site Scripting (XSS)24Monitor
- CVE-2020-28493Regular Expression Denial of Service (ReDoS)22Monitor
- CVE-2025-27516Jinja sandbox breakout through attr filter selecting format method21Monitor
- CVE-2024-56326Jinja has a sandbox breakout through indirect reference to format method21Monitor
- CVE-2024-56201Jinja has a sandbox breakout through malicious filenames21Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:jinja2 | 2.9.4-1 · Debian:12 | Package registry (OSV) |
| opensuse:python-Jinja2 | 2.10.1-lp150.2.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| PyPI:jinja2 | 2.8.1 | Package registry (OSV) |
| red hat:ansible-runner | 0:1.3.4-2.el7ar · Red Hat:satellite_capsule:6.6::el7 | Package registry (OSV) |
| red hat:python-jinja2 | 0:2.7.2-3.el7_6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:python27-python | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-debug | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-debuginfo | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-devel | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-jinja2 | 0:2.6-12.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-libs | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-test | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-python-tools | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:python27-tkinter | 0:2.7.16-4.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| red hat:rh-python35-python-jinja2 | 0:2.8.1-2.el6 · Red Hat:rhel_software_collections:3::el6 | Package registry (OSV) |
| suse:ardana-cassandra | 9.0+git.1600802664.7e480a2-3.6.2 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:ardana-mq | 9.0+git.1605174486.a78ddce-3.19.2 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:ardana-osconfig | 9.0+git.1601621747.a87e5a0-3.22.2 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:ardana-tempest | 9.0+git.1603378983.fc0bca9-3.19.2 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:grafana | 6.7.4-3.20.1 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:influxdb | 1.3.8-4.3.3 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:openstack-cinder | 13.0.10~dev20-3.28.2 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:openstack-heat | 11.0.4~dev4-3.19.2 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:openstack-heat-gbp | 12.0.1~dev2-3.3.4 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:openstack-heat-templates | 0.0.0+git.1605509190.64f020b6-3.9.3 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:openstack-horizon-plugin-gbp-ui | 12.0.1~dev3-3.3.4 · SUSE:OpenStack Cloud 9 | Package registry (OSV) |
| suse:python-Jinja2 | 2.10.1-3.5.1 · SUSE:Linux Enterprise Module for Basesystem 15 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-134 · Use of Externally-Controlled Format StringCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.opensuse.org/opensuse-security-announce/2019-05/msg00030.html
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00064.html
- access.redhat.com/errata/RHSA-2019:1022
- access.redhat.com/errata/RHSA-2019:1237
- access.redhat.com/errata/RHSA-2019:1260
- access.redhat.com/errata/RHSA-2019:3964
- access.redhat.com/errata/RHSA-2019:4062
- github.com/pallets/jinja/commit/9b53045c34e61013dc8f09b7e52a555fa16bed16
- palletsprojects.com/blog/jinja-281-released/
- usn.ubuntu.com/4011-1/
- usn.ubuntu.com/4011-2/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.