CVE-2026-73492

LOWPre-NVD 2.32.3—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 2.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 84% 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, secondary
2.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 2.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.allowed_uri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references such as :, , , or . CGI.unescapeHTML leaves these references encoded, so allowed_uri? reports the URL safe even though a browser decodes an encoded colon or strips encoded whitespace and executes the resulting URI scheme. This issue affects only callers that pass HTML-encoded strings directly to allowed_uri?; Loofah's default sanitize() path is not affected. This issue is fixed in version 2.25.2.

CVSS v3
2.3
EG Score
2.3(medium)
EG Risk
10(Track)
EG Risk 10/100SSVC: 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
Severity23% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 12, 2026

Last Modified

September 9, 2026

References (4)

Affected Packages

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ruby-loofah2.19.1-1 ... 2.25.2-1 (11 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ruby-loofah2.24.0-1 ... 2.25.2-1 (6 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ruby-loofah2.24.0-1, 2.24.1-1, 2.25.0-1, 2.25.1-1, 2.25.1-22.25.2-1—
RubyGems(1)
PackageVulnerable rangeFixed inDependents
loofah2.25.0, 2.25.12.25.2—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 35× 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.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 04:16 UTCEG score recompute
  3. 2026-09-16 14:08 UTCEPSS rescore
  4. 2026-09-16 05:15 UTCEPSS rescore
  5. 2026-09-15 10:00 UTCEG score recompute
  6. 2026-09-15 03:12 UTCEPSS rescore
  7. 2026-09-12 15:43 UTCEG score recompute
  8. 2026-09-12 15:02 UTCEPSS rescore
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-10 09:35 UTCEPSS rescore
  11. 2026-09-09 09:41 UTCEG score recompute
  12. 2026-09-08 22:01 UTCEPSS rescore
  13. 2026-09-06 15:26 UTCEG score recompute
  14. 2026-09-06 13:48 UTCEPSS rescore
  15. 2026-09-04 05:07 UTCEPSS rescore
  16. 2026-09-03 21:05 UTCEG score recompute
  17. 2026-09-02 14:12 UTCEPSS rescore
  18. 2026-09-01 13:54 UTCEPSS rescore
  19. 2026-09-01 04:40 UTCEPSS rescore
  20. 2026-09-01 04:40 UTCEPSS rescore
  21. 2026-09-01 02:46 UTCEG score recompute
  22. 2026-08-30 19:18 UTCEPSS rescore
  23. 2026-08-30 19:17 UTCEPSS rescore
  24. 2026-08-30 01:22 UTCEPSS rescore
  25. 2026-08-29 08:29 UTCEG score recompute
Show 25 more
  1. 2026-08-28 21:42 UTCEPSS rescore
  2. 2026-08-27 14:25 UTCEPSS rescore
  3. 2026-08-26 14:47 UTCEPSS rescore
  4. 2026-08-26 00:25 UTCEG score recompute
  5. 2026-08-25 13:49 UTCEPSS rescore
  6. 2026-08-23 06:07 UTCEG score recompute
  7. 2026-08-23 00:19 UTCEPSS rescore
  8. 2026-08-21 23:49 UTCEPSS rescore
  9. 2026-08-20 22:56 UTCEPSS rescore
  10. 2026-08-20 11:52 UTCEG score recompute
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-17 17:34 UTCEG score recompute
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 02:15 UTCEPSS rescore
  19. 2026-08-15 01:31 UTCEPSS rescore
  20. 2026-08-14 23:19 UTCEG score recompute
  21. 2026-08-14 22:24 UTCEG score recompute
  22. 2026-08-13 22:00 UTCEPSS rescore
  23. 2026-08-12 22:21 UTCEG score recompute
  24. 2026-08-12 21:21 UTCEG score recompute
  25. 2026-08-12 21:20 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73492?
CVE-2026-73492 is a low vulnerability published on August 12, 2026. Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. From 2.25.0 until 2.25.2, Loofah::HTML5::Scrub.alloweduri? does not reject javascript: or vbscript: URIs whose scheme is split by semicolon-less numeric character references…
When was CVE-2026-73492 disclosed?
CVE-2026-73492 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73492 actively exploited?
CVE-2026-73492 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 83.9% of all scored CVEs.
What is the CVSS score of CVE-2026-73492?
CVE-2026-73492 has a CVSS v3 base score of 2.3 (NVD).
How do I remediate CVE-2026-73492?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73492, 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

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