Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
SVGO: DoS through entity expansion in DOCTYPE (Billion Laughs)
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U N N H 7.5 .0061 46.6 —
AFFECTED
Product Versions Fixed
svgo >= 2.1.0, < 2.8.1 – —
TIMELINE
Mar 3 Reserved by GitHub_M
Mar 6 Published (CNA: GitHub_M)
Aug 17 EXPLOIT PUBLISHED — CVE-2026-29074 (svgo). Public exploit reference added.
Description
SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 2.1.0 to before version 2.8.1, from version 3.0.0 to before version 3.3.3, and before version 4.0.1, SVGO accepts XML with custom entities, without guards against entity expansion or recursion. This can result in a small XML file (811 bytes) stalling the application and even crashing the Node.js process with JavaScript heap out of memory. This issue has been patched in versions 2.8.1, 3.3.3, and 4.0.1.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| March 3, 2026 | Reserved | Reserved by GitHub_M |
| March 6, 2026 | Published | Published (CNA: GitHub_M) |
| August 17, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-29074 (svgo). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| svg | svgo | — | >= 2.1.0, < 2.8.1 | — |
References (29)
- https://access.redhat.com/errata/RHSA-2026:11856 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:11916 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:13512 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:13545 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:13553 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:13826 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:19375 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:19712 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:21017 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:21772 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:22465 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:24977 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:48085 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:5807 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:6277 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:6309 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:6568 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:6926 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:7110 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:8483 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:8484 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:8490 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:8491 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:8493 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/errata/RHSA-2026:9742 [vendor-advisory, x_refsource_REDHAT]
- https://access.redhat.com/security/cve/CVE-2026-29074 [vdb-entry, x_refsource_REDHAT]
- https://bugzilla.redhat.com/show_bug.cgi?id=2445132 [issue-tracking, x_refsource_REDHAT]
- https://github.com/svg/svgo/security/advisories/GHSA-xpqw-6gx7-v673 [x_refsource_CONFIRM]
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29074.json [x_sadp-csaf-vex]
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-29074 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.