CVE catalog

CVE-2019-8341

jinja2 affected and fixed versions

An issue was discovered in Jinja2 2.10. The from_string function is prone to Server Side Template Injection (SSTI) where it takes the "source" parameter as a template object, renders it, and then returns it. The attacker can exploit it with {{INJECTION COMMANDS}} in a URI. NOTE: The maintainer and multiple third parties believe that this vulnerability isn't valid because users shouldn't use untrusted templates without sandboxing

Severity: High · CVSS 8.2CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Published: Feb 14, 2019, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 43.87% · Oct 27, 2026

Projects and upstream resources

[jinja2][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	jinja2	Not reported	AffectedDistribution reports no fix	[CVE-2019-8341]
Debiantrixie	jinja2	`3.1.6-1`	Affected	[CVE-2019-8341]
Debiansid	jinja2	Not reported	AffectedDistribution reports no fix	[CVE-2019-8341]
Debiansid	jinja2	`3.1.6-4`	Affected	[CVE-2019-8341]
Ubuntupro	jinja2	`2.10-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm2`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm3`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm4`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm5`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.9.6-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC

Showing 12 observations. All 17 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
UnknownRelease not reported	jinja2	Not reported	UnknownSource applicability is not established	Provider not reported
Debianbookworm	jinja2	Not reported	AffectedDistribution reports no fix	[CVE-2019-8341]
Debianbookworm	jinja2	`3.1.2-1+deb12u3`	Affected	[CVE-2019-8341]
Debianforky	jinja2	Not reported	AffectedDistribution reports no fix	[CVE-2019-8341]
Debianforky	jinja2	`3.1.6-4`	Affected	[CVE-2019-8341]
Debiansid	jinja2	Not reported	AffectedDistribution reports no fix	[CVE-2019-8341]
Debiansid	jinja2	`3.1.6-4`	Affected	[CVE-2019-8341]
Debiantrixie	jinja2	Not reported	AffectedDistribution reports no fix	[CVE-2019-8341]
Debiantrixie	jinja2	`3.1.6-1`	Affected	[CVE-2019-8341]
Ubuntupro	jinja2	`2.10-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm2`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm3`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm4`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.10-1ubuntu0.18.04.1+esm5`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC
Ubuntupro	jinja2	`2.9.6-1`	UnknownSource applicability is not established	[UBUNTU-CVE-2019-8341]Sep 8, 2025, 4:45:17 PM UTC

Original provider fields

{
  "package_releases": [
    {
      "name": "jinja2",
      "status": "vulnerable",
      "release": "sid",
      "version": "3.1.6-4"
    },
    {
      "name": "jinja2",
      "status": "vulnerable",
      "release": "forky",
      "version": "3.1.6-4"
    },
    {
      "name": "jinja2",
      "status": "vulnerable",
      "release": "trixie",
      "version": "3.1.6-1"
    },
    {
      "name": "jinja2",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.1.2-1+deb12u3"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "jinja2",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "jinja2",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "jinja2",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "jinja2",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "jinja2",
      "fixed_version": "not yet fixed",
      "applicability_unknown": true
    },
    {
      "name": "jinja2",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "2.9.6-1",
        "2.10-1",
        "2.10-1ubuntu0.18.04.1",
        "2.10-1ubuntu0.18.04.1+esm1",
        "2.10-1ubuntu0.18.04.1+esm2",
        "2.10-1ubuntu0.18.04.1+esm3",
        "2.10-1ubuntu0.18.04.1+esm4",
        "2.10-1ubuntu0.18.04.1+esm5"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-8341",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2019-8341",
      "provider_updated_at": "2025-09-08T16:45:17Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[python3-jinja2]Unknown
Source package: [jinja2]
Details (2)
- 3.1.2-1+deb12u3 · all · bookworm
  Affected
  dsa · jinja2 · debian · bookworm; dsa · jinja2 · debian · 12
- 3.1.2-1+deb12u3 · all · bookworm
  Affected
  dsa · jinja2 · debian · bookworm; dsa · jinja2 · debian · 12
[python-jinja2-doc]Unknown
Source package: [jinja2]
Details (2)
- 3.1.2-1+deb12u3 · all · bookworm
  Affected
  dsa · jinja2 · debian · bookworm; dsa · jinja2 · debian · 12
- 3.1.2-1+deb12u3 · all · bookworm
  Affected
  dsa · jinja2 · debian · bookworm; dsa · jinja2 · debian · 12

[Debian 13 (Trixie)]

[python3-jinja2]Unknown
Source package: [jinja2]
Details (2)
- 3.1.6-1 · all · trixie
  Affected
  dsa · jinja2 · debian · 13
- 3.1.6-1 · all · trixie
  Affected
  dsa · jinja2 · debian · 13
[python-jinja2-doc]Unknown
Source package: [jinja2]
Details (2)
- 3.1.6-1 · all · trixie
  Affected
  dsa · jinja2 · debian · 13
- 3.1.6-1 · all · trixie
  Affected
  dsa · jinja2 · debian · 13

Observed: Oct 23, 2026, 5:45:05 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]