SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.4, 3.3.5, and 4.1.0, the opt-in removeScripts plugin, named removeScriptElement in versions 2 and 3 and implemented in plugins/removeScripts.js, removes SVG and XHTML script elements but does not inspect executable HTML content inside SVG foreignObject elements. Event-handler attributes such as onload and onbeforetoggle, srcdoc documents, and executable URLs in the action, data, formaction, href, and src attributes can remain in attacker-controlled SVG input. When an application uses the plugin as its only protection and serves the optimized SVG in an active browser context, the payload can execute script in the viewer's origin, expose data, modify content, or perform actions as the victim. This issue is fixed in versions 2.8.4, 3.3.5, and 4.1.0.
CVE-2026-84369
This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 79% 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).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- 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 computedSeverity61% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 21%
- KEV
- Not listed
Published
September 1, 2026
Last Modified
September 9, 2026
Advisory Details (10)
Auto-updated Sep 1, 2026v4.1.0
Patch available: svg/svgo v4.1.0
https://github.com/svg/svgo/releases/tag/v4.1.0v3.3.5
Patch available: svg/svgo v3.3.5
https://github.com/svg/svgo/releases/tag/v3.3.5v2.8.4
Patch available: svg/svgo v2.8.4
https://github.com/svg/svgo/releases/tag/v2.8.4commit fd51e474a300 (svg/svgo)
Patch available: svg/svgo v4.1.0 (contains commit fd51e474a300)
https://github.com/svg/svgo/commit/fd51e474a300417d9361d9302d596b1763146327commit 994a9f00d79d (svg/svgo)
Patch available: svg/svgo v3.3.5 (contains commit 994a9f00d79d)
https://github.com/svg/svgo/commit/994a9f00d79ddec68ce19a1ce9eb8ca08d747e4fcommit 0557385564a5 (svg/svgo)
Patch available: svg/svgo v2.8.4 (contains commit 0557385564a5)
https://github.com/svg/svgo/commit/0557385564a5c6c11d76cd934a6cff94451e532cfix(removeScriptElement): backport security hardening to v2
Patch available: svg/svgo v2.8.4 (PR #2272 merged 2026-08-24)
https://github.com/svg/svgo/pull/2272fix(removeScriptElement): backport security hardening to v3
Patch available: svg/svgo v3.3.5 (PR #2269 merged 2026-08-24)
https://github.com/svg/svgo/pull/2269fix(removeScripts): sanitize foreignObject content
Patch available: svg/svgo v4.1.0 (PR #2264 merged 2026-08-22)
https://github.com/svg/svgo/pull/2264removeScripts incompletely sanitizes executable HTML in SVG foreignObject elements · Advisory · svg/svgo · GitHub
https://github.com/svg/svgo/security/advisories/GHSA-4vpr-x523-8j87Vendor Advisories for CVE-2026-84369(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)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| svgo | — | 4.1.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 31× 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.
- 2026-09-18 21:25 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-17 21:18 UTCEG score recompute
- 2026-09-17 19:32 UTCEPSS rescore
- 2026-09-16 21:22 UTCEG score recompute
- 2026-09-16 14:09 UTCEPSS rescore
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 20:54 UTCEG score recompute
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-15 03:12 UTCEPSS rescore
- 2026-09-13 20:56 UTCEG score recompute
- 2026-09-12 21:00 UTCEG score recompute
- 2026-09-11 21:04 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-10 21:07 UTCEG score recompute
- 2026-09-08 23:18 UTCEG score recompute
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-07 16:23 UTCEG score recompute
- 2026-09-06 16:26 UTCEG score recompute
- 2026-09-06 13:48 UTCEPSS rescore
- 2026-09-05 16:28 UTCEG score recompute
- 2026-09-05 15:31 UTCEPSS rescore
- 2026-09-04 16:31 UTCEG score recompute
- 2026-09-04 05:07 UTCEPSS rescore
Show 6 moreShow fewer
- 2026-09-02 16:38 UTCEG score recompute
- 2026-09-02 15:58 UTCEG score recompute
- 2026-09-02 14:12 UTCEPSS rescore
- 2026-09-01 21:26 UTCEG score recompute
- 2026-09-01 20:48 UTCEG score recompute
- 2026-09-01 20:47 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-84369?
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-84369
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