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TI-2026-35501 Aliases CVE-2026-48060GHSA-542p-wvx7-72m4

Litestar: HTML Injection Through CSRF Token

Priority HIGH 70CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Litestar is an Asynchronous Server Gateway Interface (ASGI) framework. Prior to version 2.20.0, Litestar instances which use a template engine in conjunction with CSRF protection are vulnerable to HTML Injection which can be escalated to Cross Site Scripting due to the contents of the CSRF cookie being excluded from automatic escaping by the template engine when configured inline with documentation recommendations. This issue has been patched in version 2.20.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00352 29th percentileScored 2026-11-07
Fix Fixed litestar (litestar-org): 2.20.0litestar (PyPI): 2.22.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
litestar-orglitestarbefore 2.20.02.20.0Patch availableCNA
—litestar (PyPI)before 2.22.02.22.0Patch availableGHSA-542p-wvx7-72m4
  • litestar Vendorlitestar-org Affected before 2.20.0 Fixed in 2.20.0 Patch available CNA
  • litestar (PyPI) Vendor— Affected before 2.22.0 Fixed in 2.22.0 Patch available GHSA-542p-wvx7-72m4

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:litestar:litestar:*:*:*:*:*:*:*:*——litestar-org
  • cpe:2.3:a:litestar:litestar:*:*:*:*:*:*:*:* Versions — — ·litestar-org

Remediation

  • Fix · CNA litestar (litestar-org) Fixed in 2.20.0
  • Fix · GHSA-542p-wvx7-72m4 litestar (PyPI) Fixed in 2.22.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48060
  2. 2026-10-03 Alias added: GHSA-542p-wvx7-72m4

References

Other 4

  • TI-2024-21848 Litestar and Starlite affected by Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CVSS 3.1HIGH 8.2
  • TI-2024-35241 Litestar allows unbounded resource consumption (DoS vulnerability) CVSS 4.0HIGH 8.2
  • TI-2025-36757 X-Forwarded-For Header Spoofing Bypasses Litestar Rate Limiting CVSS 3.1HIGH 7.5
  • TI-2024-28356 Litestar repository vulnerable to Environment Variable injection in `docs-preview.yml` workflow CVSS 3.1HIGH 8.3
  • TI-2026-35502 Litestar: AllowedHostsMiddleware bypasses host validation via client-controlled X-Forwarded-Host header CVSS 3.1MEDIUM 5.9
  • TI-2026-20591 FileStore key canonicalization collisions allow response cache mixup/poisoning (ASCII ord + Unicode NFKD) CVSS 3.1MEDIUM 6.5
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences