CVE-2026-54729

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (39th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.7Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.5, is_url_safe can treat localhost as safe when DNS resolver 1.1.1.1 returns NXDOMAIN because dns.resolve4 yields no address and no dns.lookup fallback occurs, allowing server-side request forgery. This issue is fixed in version 1.0.5.

CVSS v3
8.7
EG Score
8.7HIGHmedium confidence
EG Risk
70
EG Risk 70/100CISA SSVC

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
Severity87% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
39th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 31, 2026

Last Modified

September 10, 2026

Advisory Details (3)

Auto-updated Jul 31, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit.
github_commit

commit 668c21792cd1 (HackingRepo/dssrf-js)

Fix landed in HackingRepo/dssrf-js commit 668c21792cd1 — awaiting tagged release

https://github.com/HackingRepo/dssrf-js/commit/668c21792cd1252baf779a176aa652e2b4c0067d
github_pr

Use dns.lookup and dns.resolve4 not just dns.resolve4 alone

Fix merged in HackingRepo/dssrf-js PR #102 on 2026-06-09 — awaiting tagged release

https://github.com/HackingRepo/dssrf-js/pull/102
github Patch Available🟡 PoC Available

any users using 1.1.1.1 DNS is impacted by SSRF · Advisory · HackingRepo/dssrf-js · GitHub

https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-5846-7qm3-r52j

Vendor Advisories for CVE-2026-54729(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
dssrf—
  • every version up to 1.0.5: fixed in 1.0.5
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 48× 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 113 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-54729?
CVE-2026-54729 is a high vulnerability published on July 31, 2026. DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.5, isurlsafe can treat localhost as safe when DNS resolver 1.1.1.1 returns NXDOMAIN because dns.resolve4 yields no address and no dns.lookup fallback occurs, allowing server-side…
When was CVE-2026-54729 disclosed?
CVE-2026-54729 was first published on July 31, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54729 actively exploited?
CVE-2026-54729 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54729?
CVE-2026-54729 has a CVSS base score of 8.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54729?
A fix for CVE-2026-54729 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54729 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-54729

Explore →

Is Your Infrastructure Affected by CVE-2026-54729?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs