CVE-2026-42338

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 61% of all CVEs by exploit prediction. 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, nvd
Trending — Patch released this weekElevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.1.1, Address6.group() and Address6.link() do not HTML-escape attacker-controlled content before embedding it in the HTML strings they return, and AddressError.parseMessage (emitted by the Address6 constructor for invalid input) can contain unescaped attacker-controlled content in one branch. An application that (1) passes untrusted input to Address6 and (2) renders the output of these methods, or the thrown error's parseMessage, as HTML (e.g. via innerHTML) is vulnerable to cross-site scripting. This vulnerability is fixed in 10.1.1.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: Track

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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

May 12, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Jun 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

XSS in Address6 HTML-emitting methods · Advisory · beaugunderson/ip-address · GitHub

https://github.com/beaugunderson/ip-address/security/advisories/GHSA-v2v4-37r5-5v8g

Vendor Advisories for CVE-2026-42338(20)

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

Patch Availability(25)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9:17871213872026-08-27redhat
redhatrh-podman-desktop-0:1.1.2-1.el10_22026-08-20redhat
redhatodf4/rook-ceph-rhel9-operator:17870615542026-08-19redhat
redhatnodejs:22-9060020260804140259.rhel92026-08-10redhat
redhatsatellite/iop-remediations-rhel9:17860080412026-08-06redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17847246992026-07-28redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17847215812026-07-28redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17847137412026-07-28redhat
redhatnodejs:22-8100020260703140402.6d8804032026-07-20redhat
redhatrhmtc/openshift-migration-ui-rhel8:17836905322026-07-20redhat
redhatnodejs:24-8100020260630152626.6d8804032026-07-15redhat
redhatnodejs22-1:22.23.1-2.el10_02026-07-14redhat
redhatdevspaces/dashboard-rhel9:17824987922026-07-08redhat
redhatrhdh/rhdh-hub-rhel9:17834481842026-07-08redhat
redhatnodejs24-1:24.18.0-1.el10_22026-07-06redhat
redhatnodejs22-1:22.23.1-2.el10_22026-07-06redhat
redhatnodejs:24-9080020260626074955.rhel92026-07-06redhat
redhatnodejs:22-9080020260626075442.rhel92026-07-06redhat
redhatansible-automation-platform-tech-preview/mcp-server-rhel9:17827211302026-07-01redhat
redhatrhdh/rhdh-hub-rhel9:17827612442026-06-30redhat
redhatopenshift-service-mesh/kiali-rhel9:17822018332026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel9:17822015372026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel9:17822018122026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel8:17822875802026-06-29redhat
redhatopenshift-service-mesh/kiali-rhel9:17822014662026-06-29redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
node-ip-address10.2.0-1 ... 8.1.0-3 (8 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-ip-address10.2.0-1 ... 8.1.0-3 (6 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-ip-address10.2.0-1 ... 8.1.0-3 (6 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-ip-address10.2.0-1, 8.1.0-2, 8.1.0-310.2.0-2—
npm(1)
PackageVulnerable rangeFixed inDependents
ip-address—10.1.1—

Weakness Classification(1)

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

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 18× in last 7d / 88× 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 203 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-42338?
CVE-2026-42338 is a medium vulnerability published on May 12, 2026. ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.1.1, Address6.group() and Address6.link() do not HTML-escape attacker-controlled content before embedding it in the HTML strings they return, and AddressError.parseMessage (emitted by the…
When was CVE-2026-42338 disclosed?
CVE-2026-42338 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42338 actively exploited?
CVE-2026-42338 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.1% of all scored CVEs.
What is the CVSS score of CVE-2026-42338?
CVE-2026-42338 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-42338?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42338, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-42338

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