CVE-2026-71291

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Source
https://cve.org/CVERecord?id=CVE-2026-71291
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71291.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71291
Published
2026-08-05T12:38:41.070Z
Modified
2026-08-12T03:51:28.665995837Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Bolt CMS Server-Side Template Injection via Unsandboxed allow_twig Field Rendering
Details

Bolt CMS renders content field values through Twig's full application-level Environment with no SandboxExtension registered anywhere in the codebase. In src/Entity/Field.php, getTwigValue calls shouldBeRenderedAsTwig, which gates rendering only on the field definition's allow_twig flag and a regex checking for , , or ; when true, the raw field value is compiled and rendered via with no sandboxing.

Database specific 
{
    "cwe_ids": [
        "CWE-1336"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71291.json",
    "cna_assigner": "TuranSec"
}
References

Affected packages

Git / github.com/bolt/core

Affected ranges

Type
GIT
Repo
https://github.com/bolt/core
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
9e4887c87b547924226496da8e0a5c6fd06980b8
Database specific
Show details 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "6.1"
        }
    ]
}

Affected versions

1.*
1.0.0-alpha1
4.*
4.0.0
4.0.0-alpha3
4.0.0-beta.1
4.0.0-beta.1.1
4.0.0-beta.1.2
4.0.0-beta.1.3
4.0.0-beta.1.4
4.0.0-beta.1.5
4.0.0-beta.1.6
4.0.0-beta.1.7
4.0.0-beta.1.8
4.0.0-beta.2
4.0.0-beta.2.1
4.0.0-beta.2.10
4.0.0-beta.2.2
4.0.0-beta.2.3
4.0.0-beta.2.4
4.0.0-beta.2.5
4.0.0-beta.2.6
4.0.0-beta.2.7
4.0.0-beta.2.8
4.0.0-beta.2.9
4.0.0-beta.3
4.0.0-beta.3.1
4.0.0-beta.3.2
4.0.0-beta.3.3
4.0.0-beta.3.4
4.0.0-beta.3.5
4.0.0-beta.3.6
4.0.0-beta.3.7
4.0.0-beta.3.8
4.0.0-beta.4
4.0.0-beta.4.1
4.0.0-beta.4.2
4.0.0-beta.4.3
4.0.0-beta.4.4
4.0.0-beta.4.5
4.0.0-beta.4.6
4.0.0-beta.5
4.0.0-beta.5.1
4.0.0-beta.5.2
4.0.0-beta.5.3
4.0.0-beta.5.4
4.0.0-beta.5.5
4.0.0-beta.5.6
4.0.0-beta.5.7
4.0.0-beta.5.8
4.0.0-beta.5.9
4.0.0-rc.1
4.0.0-rc.10
4.0.0-rc.11
4.0.0-rc.12
4.0.0-rc.13
4.0.0-rc.14
4.0.0-rc.15
4.0.0-rc.16
4.0.0-rc.17
4.0.0-rc.18
4.0.0-rc.19
4.0.0-rc.2
4.0.0-rc.20
4.0.0-rc.21
4.0.0-rc.22
4.0.0-rc.23
4.0.0-rc.24
4.0.0-rc.25
4.0.0-rc.26
4.0.0-rc.27
4.0.0-rc.28
4.0.0-rc.29
4.0.0-rc.3
4.0.0-rc.31
4.0.0-rc.32
4.0.0-rc.33
4.0.0-rc.34
4.0.0-rc.35
4.0.0-rc.37
4.0.0-rc.39
4.0.0-rc.4
4.0.0-rc.40
4.0.0-rc.41
4.0.0-rc.42
4.0.0-rc.43
4.0.0-rc.44
4.0.0-rc.5
4.0.0-rc.6
4.0.0-rc.7
4.0.0-rc.8
4.0.0-rc.9
4.0.1
4.1.0
4.1.2
4.1.3
4.2.0-beta.2
4.2.0-beta.3
4.2.0-beta.4
4.2.0-beta.5
4.2.0-beta.6
5.*
5.0.0
5.0.0-beta.1
5.0.0-beta.1.1
5.0.0-beta.1.2
5.0.0-beta.1.3
5.0.0-beta.10
5.0.0-beta.12
5.0.0-beta.13
5.0.0-beta.14
5.0.0-beta.2
5.0.0-beta.3
5.0.0-beta.4
5.0.0-beta.5
5.0.0-beta.6
5.0.0-beta.6.1
5.0.0-beta.7
5.0.0-beta.8
5.0.0-beta.9
5.0.0-rc.1
5.0.0-rc.2
5.0.1
5.0.2
5.0.3
5.0.4
5.0.5
5.0.6
5.1.0
5.1.0-beta.1
5.1.0-beta.2
5.1.0-beta.3
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
5.1.7-pl.1
5.2.0
5.2.0-beta.1
5.2.0-beta.10
5.2.0-beta.11
5.2.0-beta.12
5.2.0-beta.15.1
5.2.0-beta.17
5.2.0-beta.18
5.2.0-beta.18.1
5.2.0-beta.2
5.2.0-beta.20
5.2.0-beta.21
5.2.0-beta.22
5.2.0-beta.23
5.2.0-beta.24
5.2.0-beta.24.1
5.2.0-beta.25
5.2.0-beta.26
5.2.0-beta.3
5.2.0-beta.4
5.2.0-beta.5
5.2.0-beta.6
5.2.0-beta.7
5.2.0-beta.8
5.2.0-beta.9
5.2.0-rc.1
5.2.1
5.2.2
6.*
6.0.0
6.0.0-beta.1
6.0.0-beta.10
6.0.0-beta.11
6.0.0-beta.2
6.0.0-beta.3
6.0.0-beta.5
6.0.0-beta.6
6.0.0-beta.7
6.0.0-beta.8
6.0.0-beta.9
6.0.0-rc.1
6.0.0-rc.2
6.0.1
6.0.2
6.0.3
6.1.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71291.json"