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Vulnerabilities

Vulnerability · CVE-2025-8848

A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header.

Published Oct 22, 2025 · catalog updated Oct 30, 2025 · A vulnerability in danny-avila/librechat

Last checked Oct 25, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-8848 is not in CISA KEV. FIRST estimates a 45.00% chance of exploitation in the next 30 days. Check whether you run A vulnerability in danny-avila/librechat.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A vulnerability in danny-avila/librechat).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
45.00%
Remediation
Vendor / distro source
Affected products
vendor danny-avila danny-avila/librechat unspecified ≤latest

A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor danny-avila danny-avila/librechat unspecified ≤latestunspecified ≤latest

How to fix CVE-2025-8848

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    No version range is stored, so an installed version cannot be checked on this page.

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-8848 is not in CISA KEV. FIRST estimates a 45.00% chance of exploitation in the next 30 days. Check whether you run A vulnerability in danny-avila/librechat.

Which versions are affected?

Compare what you have installed with danny-avila danny-avila/librechat unspecified ≤latest unspecified ≤latest. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 45.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 22, 2025 · EUVD

    Detected

    A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.

  2. Oct 30, 2025 · EUVD

    Updated

    A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.

Sources

  • CVE.orgVulnerability recordCVE-2025-8848

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-35577

    A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the tag of the response. This can lead to po

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 30, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 25, 2026
  • EUVDOct 25, 2026