RUSTSEC-2026-0305

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Source

https://rustsec.org/advisories/RUSTSEC-2026-0305

Import Source

https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0305.json

JSON Data

https://api.osv.dev/v1/vulns/RUSTSEC-2026-0305

Aliases

CVE-2026-96889

Published

2026-09-23T12:00:00Z

Modified

2026-09-23T21:30:03Z

Summary

Use-after-free when XML includes have duplicated entities

Details

Librsvg uses libxml2, a C library, to parse XML. When librsvg parses an SVG document which has a nested Xinclude, an XML entity declaration with a duplicate name as an existing one can cause a use-after-free error.

While libxml2 is expanding an internal entity, a recursive XInclude can parse another document that declares an entity with the same name. Both parses use the same XmlState entity map on the librsvg side. entity_insert() replaces the first entry, whose Drop implementation calls xmlFreeNode(). The outer xmlCtxtParseEntity() then keeps using the freed 144-byte xmlEntity.

The included parse should not free an entity that the outer parser is still using.

The fix is in commit 8a1b0cd319e9af2d1e9cf878081dd77f227a0504, where librsvg will no longer free xmlEntity pointers that libxml2 is still using.

Database specific

{
    "license":  "CC0-1.0"
}

References

Affected packages

crates.io / librsvg

Package

Name: librsvg; View open source insights on deps.dev
Purl: pkg:cargo/librsvg

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-0

Fixed

2.62.4

Introduced

2.62.90

Fixed

2.63.2

Ecosystem specific

{
    "affected_functions":  null,
    "affects":  {
        "arch":  [],
        "functions":  [],
        "os":  []
    }
}