In Pallets Jinja before 2.10.1, str.format_map allows a sandbox escape.
CVE-2019-10906
This high-severity CVE scores 8.6 under NVD CVSS v3. EPSS exploit probability: 3.6%, top 12% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.6
- EG Score
- 8.6(medium)
- EG Risk
- —
- EPSS
- 88.3%
- KEV
- Not listed
Published
April 7, 2019
Last Modified
November 21, 2024
References (38)
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-05/msg00030.html
- cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2019-06/msg00064.html
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:1152
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:1237
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:1329
- cve@mitrehttps://lists.apache.org/thread.html/09fc842ff444cd43d9d4c510756fec625ef8eb1175f14fd21de2605f%40%3Cdevnull.infra.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/2b52b9c8b9d6366a4f1b407a8bde6af28d9fc73fdb3b37695fd0d9ac%40%3Cdevnull.infra.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/320441dccbd9a545320f5f07306d711d4bbd31ba43dc9eebcfc602df%40%3Cdevnull.infra.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/46c055e173b52d599c648a98199972dbd6a89d2b4c4647b0500f2284%40%3Cdevnull.infra.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/57673a78c4d5c870d3f21465c7e2946b9f8285c7c57e54c2ae552f02%40%3Ccommits.airflow.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/7f39f01392d320dfb48e4901db68daeece62fd60ef20955966739993%40%3Ccommits.airflow.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/b2380d147b508bbcb90d2cad443c159e63e12555966ab4f320ee22da%40%3Ccommits.airflow.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/f0c4a03418bcfe70c539c5dbaf99c04c98da13bfa1d3266f08564316%40%3Ccommits.airflow.apache.org%3E
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSW3QZMFVVR7YE3UT4YRQA272TYAL5AF/
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCDYIS254EJMBNWOG4S5QY6AOTOR4TZU/
Vendor Advisories for CVE-2019-10906(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2019-10906Microsoft Security Response Center (MSRC)
CVE-2019-10906
- RHSA-2019:3172Red Hat Product SecurityMedium
Red Hat Security Advisory: Red Hat Satellite 6 security, bug fix, and enhancement update
- RHSA-2019:1237Red Hat Product SecurityHigh
Red Hat Security Advisory: rh-python35-python-jinja2 security update
Patch Availability(6)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3-jinja2 (2.8-1ubuntu0.1) @ xenial | 2026-05-27 | ubuntu |
| ubuntu | python3-jinja2 (2.7.2-2ubuntu0.1~esm1) @ trusty | 2026-05-27 | ubuntu |
| redhat | tfm-rubygem-zest-0:0.0.4-1.el7sat | 2019-10-22 | redhat |
| redhat | rh-python36-python-jinja2-0:2.9.6-3.el7 | 2019-06-04 | redhat |
| redhat | rh-python35-python-jinja2-0:2.8.1-2.el7 | 2019-05-16 | redhat |
| redhat | python-jinja2-0:2.10.1-2.el8_0 | 2019-05-13 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| jinja2 | 2.0 ... 2.9.6 (31 versions) | 2.10.1 | — |
Additional Vendor Advisories
(4)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 13× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:19 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
- 2026-07-20 18:32 UTCOSV refresh
- 2026-07-20 17:04 UTCEPSS rescore
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- 2026-07-03 13:56 UTCOSV refresh
- 2026-07-02 16:56 UTCEPSS rescore
- 2026-07-01 15:03 UTCEPSS rescore
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- 2026-06-30 23:20 UTCEPSS rescore
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- 2026-06-25 13:47 UTCEPSS rescore
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- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-15 03:43 UTCOSV refresh
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
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- 2026-06-04 13:10 UTCEPSS rescore
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- 2026-06-01 13:50 UTCEPSS rescore
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- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:42 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 20:53 UTCEG score recompute
- 2026-05-27 20:53 UTCVendor advisory
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-23 04:09 UTCOSV refresh
Related CVEs(same vendor)
Frequently asked(5)
What is CVE-2019-10906?
When was CVE-2019-10906 disclosed?
Is CVE-2019-10906 actively exploited?
What is the CVSS score of CVE-2019-10906?
How do I remediate CVE-2019-10906?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-10906
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