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Medium 5.3Published Jun 29, 2026

CVE-2026-57942LibreTranslate - IP Spoofing via X-Forwarded-For Header

Updated under an hour ago ()

Does this affect you?

It affects LibreTranslate. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-348
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Jun 30, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
LibreTranslate LibreTranslate
libretranslate:libretranslate (from the name)
through 1.9.7; 397fd224080515d4001a1bc60c8fed53e3c56b6f not affected
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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