CVE-2026-20719
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
DoS via URL Previews Rendering Malicious SVGs
Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to prevent rendering of external SVGs on link embeds which allows unauthenticated users to crash the Mattermost webapp and desktop app via creating an issue or PR on GitHub.. Mattermost Advisory ID: MMSA-2026-00595
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Mattermost
- Vendor
- Mattermost
- Product
- Mattermost
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 11.4.0 | affected | semver | Unavailable | 11.4.0 | None listed |
| 11.3.0 | affected | semver | Unavailable | 11.3.1 | None listed |
| 11.2.0 | affected | semver | Unavailable | 11.2.3 | None listed |
| 10.11.0 | affected | semver | Unavailable | 10.11.11 | None listed |
| 11.5.0 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.4.1 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.3.2 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.2.4 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 10.11.12 | unaffected | Unavailable | Unavailable | Unavailable | None listed |