CVE-2026-68747

MEDIUMNVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory (severity: LOW) published 2026-08-06. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
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: None knownExposed: 0

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

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the CSS scrubber in rrrene html_sanitize_ex allows an unauthenticated remote attacker to inject CSS at-rules, including an import of a remote stylesheet, into a page served to other users. HtmlSanitizeEx.Scrubber.CSS.scrub/1 applies its property and value allowlist through a Regex.replace over substrings matching a property: value declaration pattern, so input that does not match that pattern is never inspected and is copied to the output unchanged. @import url(//attacker.example/style.css); survives, while the same URL inside a background: url(...) declaration is removed.

Element boundaries are resolved before the scrubber runs, so injected content does not escape the element and no script executes.

This issue affects html_sanitize_ex: from 0.3.1 before 1.4.5 and from 1.5.0-rc.0 before 1.5.4.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 19, 2026

Advisory Details (3)

Auto-updated Aug 11, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

OSV - Open Source Vulnerabilities

https://osv.dev/vulnerability/EEF-CVE-2026-68747
github_commit

commit 0b9f9ad63a75 (rrrene/html_sanitize_ex)

Fix landed in rrrene/html_sanitize_ex commit 0b9f9ad63a75 — awaiting tagged release

https://github.com/rrrene/html_sanitize_ex/commit/0b9f9ad63a7529d4f2c3c1134c371adc3e654308
generic

CVE-2026-68747

https://cna.erlef.org/cves/CVE-2026-68747.html

Vendor Advisories for CVE-2026-68747(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)
Hex(1)
PackageVulnerable rangeFixed inDependents
html_sanitize_ex0.3.1 ... 1.5.3 (22 versions)1.5.4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 45× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 11:29 UTCEG score recompute
  3. 2026-08-20 11:29 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 12:25 UTCGHSA enrichment
  6. 2026-08-19 12:00 UTCEG score recompute
  7. 2026-08-19 11:59 UTCGHSA enrichment
  8. 2026-08-19 06:24 UTCEG score recompute
  9. 2026-08-19 06:24 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 07:12 UTCEG score recompute
  13. 2026-08-18 07:12 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 08:09 UTCEG score recompute
  16. 2026-08-17 08:09 UTCGHSA enrichment
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 09:06 UTCEG score recompute
  20. 2026-08-16 09:06 UTCGHSA enrichment
  21. 2026-08-16 02:15 UTCEPSS rescore
  22. 2026-08-15 10:04 UTCEG score recompute
  23. 2026-08-15 10:04 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-14 11:01 UTCEG score recompute
Show 20 more
  1. 2026-08-14 11:01 UTCGHSA enrichment
  2. 2026-08-13 22:00 UTCEPSS rescore
  3. 2026-08-13 11:58 UTCEG score recompute
  4. 2026-08-13 11:58 UTCGHSA enrichment
  5. 2026-08-12 13:51 UTCEPSS rescore
  6. 2026-08-12 12:56 UTCEG score recompute
  7. 2026-08-12 12:56 UTCGHSA enrichment
  8. 2026-08-11 13:53 UTCEG score recompute▲ 3.80
  9. 2026-08-11 13:53 UTCGHSA enrichment
  10. 2026-08-11 13:52 UTCNVD updateCVSS v3 → 6.1 · severity → MEDIUM
  11. 2026-08-11 00:00 UTCEPSS rescore
  12. 2026-08-10 13:47 UTCEG score recompute
  13. 2026-08-10 13:47 UTCGHSA enrichment
  14. 2026-08-09 13:47 UTCEPSS rescore
  15. 2026-08-08 16:37 UTCEPSS rescore
  16. 2026-08-07 13:51 UTCGHSA enrichment
  17. 2026-08-06 22:38 UTCGHSA enrichment
  18. 2026-08-06 16:32 UTCEG score recompute
  19. 2026-08-06 15:31 UTCEG score recompute
  20. 2026-08-06 15:31 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-68747?
CVE-2026-68747 is a medium vulnerability published on August 6, 2026. Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the CSS scrubber in rrrene htmlsanitizeex allows an unauthenticated remote attacker to inject CSS at-rules, including an import of a remote stylesheet, into a page served to other…
When was CVE-2026-68747 disclosed?
CVE-2026-68747 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-68747 actively exploited?
CVE-2026-68747 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 82.8% of all scored CVEs.
What is the CVSS score of CVE-2026-68747?
CVE-2026-68747 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-68747?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-68747, 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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