CVE-2026-57942

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory published 2026-06-29. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-40160 (ENISA EUVD) · GHSA-4rjg-9qq9-25m8 (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.3Exploit: No code on recordExposed 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 impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.
EPSS PROB
0.2%
EPSS %ILE
14th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule at low or medium mission impact and sooner than that at high, then apply it.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 29, 2026

Last Modified

October 25, 2026

Advisory Details (4)

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

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

https://github.com/LibreTranslate/LibreTranslate/issues/986
Web page

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

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

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 9× in last 7d / 43× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 233 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 133 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  5. 2026-10-29 16:37 UTCEG score recompute
  6. 2026-10-29 16:37 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  7. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-10-25 21:37 UTCEG score recompute
  12. 2026-10-25 21:37 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  13. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  14. 2026-10-25 14:17 UTCEG score recompute
  15. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  16. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  17. 2026-10-22 21:03 UTCEG score recompute
  18. 2026-10-22 21:03 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  19. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  22. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-18 03:28 UTCEG score recompute
  25. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 19th percentile
Show 75 more
  1. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  4. 2026-10-13 18:54 UTCOSV refresh
  5. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  7. 2026-10-12 15:53 UTCEG score recompute
  8. 2026-10-11 19:37 UTCEG score recompute
  9. 2026-10-11 16:52 UTCEG score recompute
  10. 2026-10-11 14:15 UTCEG score recompute
  11. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  12. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  14. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  15. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  16. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  21. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  22. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  24. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  26. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  27. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  28. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  29. 2026-09-23 07:29 UTCEG score recompute
  30. 2026-09-23 07:29 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  31. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  32. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  33. 2026-09-18 06:58 UTCEG score recompute
  34. 2026-09-18 06:58 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  35. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  36. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  37. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  38. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  39. 2026-09-14 00:52 UTCEG score recompute
  40. 2026-09-14 00:52 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  41. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  42. 2026-09-12 15:14 UTCEG score recompute
  43. 2026-09-12 15:14 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  44. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  45. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  46. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  47. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  48. 2026-09-06 14:42 UTCEG score recompute
  49. 2026-09-06 14:42 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  50. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  51. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  52. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  53. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  54. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  55. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  56. 2026-08-30 18:33 UTCEG score recompute
  57. 2026-08-30 18:33 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  58. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  59. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  60. 2026-08-27 22:46 UTCEG score recompute
  61. 2026-08-27 22:46 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  62. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  63. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  64. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  65. 2026-08-24 12:40 UTCEG score recompute
  66. 2026-08-24 12:40 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  67. 2026-08-23 08:29 UTCEG score recompute
  68. 2026-08-23 08:29 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  69. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  70. 2026-08-22 08:53 UTCEG score recompute
  71. 2026-08-22 08:53 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  72. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  73. 2026-08-21 05:15 UTCEG score recompute
  74. 2026-08-21 05:15 UTCGHSA enrichmentGHSA-4rjg-9qq9-25m8 · GitHub CVSS 5.3
  75. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 9th percentile

Frequently asked(5)

What is CVE-2026-57942?
CVE-2026-57942 is a medium-severity vulnerability; its CVE record was published on June 29, 2026. 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.…
When was CVE-2026-57942 made public?
CVE-2026-57942 was made public on June 13, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on June 29, 2026. EchelonGraph's copy of the record carries a last-modified date of October 25, 2026; the record at its source may have been updated since.
Is CVE-2026-57942 actively exploited?
CVE-2026-57942 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th 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 (a secondary CVSS source that NVD displays; 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-57942

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