CVE-2026-57942

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-06-29. the CNA's CVSS baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Elevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.3Exploit: Elevated riskExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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
EG Score
5.3MEDIUMmedium confidence
EG Risk
55
EG Risk 55/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
EPSS PROB
0.3%
EPSS %ILE
18th
KEV
Not listed

Published

June 29, 2026

Last Modified

June 30, 2026

Advisory Details (4)

Auto-updated Jun 29, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

X-Forwarded-For Header Spoofing Allows Rate Limit and Flood Ban Bypass · Issue #986 · LibreTranslate/LibreTranslate · GitHub

https://github.com/LibreTranslate/LibreTranslate/issues/986
generic

LibreTranslate - IP Spoofing via X-Forwarded-For Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/libretranslate-ip-spoofing-via-x-forwarded-for-header
github_pr

Add --trust-forwarded-for

Fix merged in LibreTranslate/LibreTranslate PR #987 on 2026-06-14 — awaiting tagged release

https://github.com/LibreTranslate/LibreTranslate/pull/987
github_commit

commit 397fd2240805 (LibreTranslate/LibreTranslate)

Fix landed in LibreTranslate/LibreTranslate commit 397fd2240805 — awaiting tagged release

https://github.com/LibreTranslate/LibreTranslate/commit/397fd224080515d4001a1bc60c8fed53e3c56b6f

Vendor Advisories for CVE-2026-57942(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 196 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:13 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-02 17:56 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-29 15:22 UTCEPSS rescore
  12. 2026-09-28 13:51 UTCEPSS rescore
  13. 2026-09-27 13:48 UTCEPSS rescore
  14. 2026-09-26 15:59 UTCEPSS rescore
  15. 2026-09-24 14:04 UTCEPSS rescore
  16. 2026-09-23 17:54 UTCEPSS rescore
  17. 2026-09-23 07:29 UTCEG score recompute
  18. 2026-09-23 07:29 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 06:58 UTCEG score recompute
  22. 2026-09-18 06:58 UTCGHSA enrichment
  23. 2026-09-17 19:31 UTCEPSS rescore
  24. 2026-09-16 14:08 UTCEPSS rescore
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 75 more
  1. 2026-09-15 03:11 UTCEPSS rescore
  2. 2026-09-14 00:52 UTCEG score recompute
  3. 2026-09-14 00:52 UTCGHSA enrichment
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-12 15:14 UTCEG score recompute
  6. 2026-09-12 15:14 UTCGHSA enrichment
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-10 09:35 UTCEPSS rescore
  9. 2026-09-08 22:01 UTCEPSS rescore
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-06 14:42 UTCEG score recompute
  12. 2026-09-06 14:42 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-04 05:07 UTCEPSS rescore
  15. 2026-09-02 14:12 UTCEPSS rescore
  16. 2026-09-01 13:54 UTCEPSS rescore
  17. 2026-09-01 04:40 UTCEPSS rescore
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 18:33 UTCEG score recompute
  20. 2026-08-30 18:33 UTCGHSA enrichment
  21. 2026-08-30 01:22 UTCEPSS rescore
  22. 2026-08-28 21:42 UTCEPSS rescore
  23. 2026-08-27 22:46 UTCEG score recompute
  24. 2026-08-27 22:46 UTCGHSA enrichment
  25. 2026-08-27 14:25 UTCEPSS rescore
  26. 2026-08-26 14:46 UTCEPSS rescore
  27. 2026-08-25 13:49 UTCEPSS rescore
  28. 2026-08-24 12:40 UTCEG score recompute
  29. 2026-08-24 12:40 UTCGHSA enrichment
  30. 2026-08-23 08:29 UTCEG score recompute
  31. 2026-08-23 08:29 UTCGHSA enrichment
  32. 2026-08-23 00:19 UTCEPSS rescore
  33. 2026-08-22 08:53 UTCEG score recompute
  34. 2026-08-22 08:53 UTCGHSA enrichment
  35. 2026-08-21 23:49 UTCEPSS rescore
  36. 2026-08-21 05:15 UTCEG score recompute
  37. 2026-08-21 05:15 UTCGHSA enrichment
  38. 2026-08-20 22:55 UTCEPSS rescore
  39. 2026-08-20 05:45 UTCEG score recompute
  40. 2026-08-20 05:45 UTCGHSA enrichment
  41. 2026-08-19 17:04 UTCEPSS rescore
  42. 2026-08-18 23:10 UTCEG score recompute
  43. 2026-08-18 23:10 UTCGHSA enrichment
  44. 2026-08-18 13:48 UTCEPSS rescore
  45. 2026-08-17 13:47 UTCEPSS rescore
  46. 2026-08-17 13:42 UTCEG score recompute
  47. 2026-08-17 13:42 UTCGHSA enrichment
  48. 2026-08-16 14:56 UTCEPSS rescore
  49. 2026-08-16 14:15 UTCEG score recompute
  50. 2026-08-16 14:15 UTCGHSA enrichment
  51. 2026-08-16 02:14 UTCEPSS rescore
  52. 2026-08-15 14:47 UTCEG score recompute
  53. 2026-08-15 14:47 UTCGHSA enrichment
  54. 2026-08-15 01:30 UTCEPSS rescore
  55. 2026-08-14 15:19 UTCEG score recompute
  56. 2026-08-14 15:19 UTCGHSA enrichment
  57. 2026-08-13 22:00 UTCEPSS rescore
  58. 2026-08-13 15:51 UTCGHSA enrichment
  59. 2026-08-12 16:08 UTCEG score recompute
  60. 2026-08-12 16:08 UTCGHSA enrichment
  61. 2026-08-12 13:51 UTCEPSS rescore
  62. 2026-08-11 16:37 UTCEG score recompute
  63. 2026-08-11 16:37 UTCGHSA enrichment
  64. 2026-08-11 00:00 UTCEPSS rescore
  65. 2026-08-10 17:08 UTCGHSA enrichment
  66. 2026-08-09 17:35 UTCEG score recompute
  67. 2026-08-09 17:35 UTCGHSA enrichment
  68. 2026-08-09 13:46 UTCEPSS rescore
  69. 2026-08-08 18:08 UTCEG score recompute
  70. 2026-08-08 18:08 UTCGHSA enrichment
  71. 2026-08-08 16:37 UTCEPSS rescore
  72. 2026-08-07 18:40 UTCEG score recompute
  73. 2026-08-07 18:40 UTCGHSA enrichment
  74. 2026-08-06 19:06 UTCEG score recompute
  75. 2026-08-06 19:06 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-57942?
CVE-2026-57942 is a medium vulnerability published on June 29, 2026. LibreTranslate through 1.9.7, fixed in commit 397fd22, contains an IP spoofing vulnerability in the getremoteaddress() function that allows unauthenticated attackers to spoof client IP addresses by injecting arbitrary values into the X-Forwarded-For header without trusted proxy validation.…
When was CVE-2026-57942 disclosed?
CVE-2026-57942 was first published on June 29, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57942 actively exploited?
CVE-2026-57942 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57942?
CVE-2026-57942 has a CVSS base score of 5.3 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-57942?
An upstream fix for CVE-2026-57942 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-57942 are linked in the Vendor Advisories panel on this page.

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