CVE-2026-57942

LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the get_remote_address() function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation. Attackers can bypass per-IP rate limiting and flood bans by supplying forged addresses in the X-Forwarded-For header to enable unlimited API abuse.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/LibreTranslate/LibreTranslate/commit/397fd224080515d4001a1bc60c8fed53e3c56b6f
https://github.com/LibreTranslate/LibreTranslate/issues/986
https://github.com/LibreTranslate/LibreTranslate/pull/987
https://www.vulncheck.com/advisories/libretranslate-ip-spoofing-via-x-forwarded-for-header
https://github.com/LibreTranslate/LibreTranslate/issues/986

Configurations

No configuration.

History

29 Jun 2026, 19:16

Type	Values Removed	Values Added
References	~~() https://github.com/LibreTranslate/LibreTranslate/issues/986 -~~	() https://github.com/LibreTranslate/LibreTranslate/issues/986 -

29 Jun 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-29 18:16

Updated : 2026-06-29 19:16

NVD link : CVE-2026-57942

Mitre link : CVE-2026-57942

CVE.ORG link : CVE-2026-57942

JSON object : View

Products Affected

No product.

CWE

CWE-348

Use of Less Trusted Source

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