Svelte 5.33 lifecycle
Current status
Svelte 5.33 is currently in standard support.
Security: 6 tracked advisories affecting this line. Details below — lifecycle and vulnerability status are separate.
Official lifecycle source: Svelte GitHub Releases
- Support phase
- standard support
- End of life
- Not officially published
- Latest release
- 5.33.19
- Released
- 10 Jun 2025
At a glance
- Version line
- 5.33
- Initial release
- 22 May 2025
- Lifecycle phase
- standard support
- Latest stable
- 5.33.19
- Latest release date
- 10 Jun 2025
- EOL
- Not officially published
- Risk
- low
- Releases tracked
- 20
Lifecycle timeline
Phases from published LifecyclePeriod records. Missing phases are not inferred.
Release
22 May 2025
standard supportcurrent
22 May 2025 → —
Source: Svelte GitHub Releases
Svelte 5.33 is currently in standard support.
Upgrade options
Newer supported Svelte version lines from CompatHub lifecycle data. Compatibility and security context use existing evidence only.
You are on Svelte 5.33
Supported
Supported upgrade options
- Svelte 5.57Upgrade planner →Supported· 24 minor versions newer
- Svelte 5.56Upgrade planner →Supported· 23 minor versions newer
- Svelte 5.55Upgrade planner →Supported· 22 minor versions newer
Security
Advisories affecting Svelte 5.33 (OSV.dev evidence). Known exploited status, due dates, and ransomware use from CISA KEV when matched.
- Known vulnerabilities
- 6
- Known exploited
- 0
- Highest CVSS
- —
- CVE-2026-42573GHSA-rcqx-6q8c-2c42
Svelte Vulnerable to XSS via DOM Clobbering of Internal Framework State
- Affected:
- <5.55.7
- Fixed in:
- 5.55.7
- Source:
- OSV source · Advisory
- CVE-2026-42599GHSA-pr6f-5x2q-rwfp
Svelte SSR vulnerable to cross-site scripting via spread attributes
- Affected:
- <5.55.7
- Fixed in:
- 5.55.7
- Source:
- OSV source · Advisory
- CVE-2026-27901GHSA-phwv-c562-gvmh
Svelte vulnerable to XSS during SSR with contenteditable `bind:innerText` and `bind:textContent`
- Affected:
- <5.53.5
- Fixed in:
- 5.53.5
- Source:
- OSV source · Advisory
- CVE-2026-27125GHSA-crpf-4hrx-3jrp
Svelte SSR attribute spreading includes inherited properties from prototype chain
- Affected:
- <5.51.5
- Fixed in:
- 5.51.5
- Source:
- OSV source · Advisory
- CVE-2026-27122GHSA-m56q-vw4c-c2cp
Svelte SSR does not validate dynamic element tag names in `<svelte:element>`
- Affected:
- <5.51.5
- Fixed in:
- 5.51.5
- Source:
- OSV source · Advisory
- CVE-2026-27121GHSA-f7gr-6p89-r883
Svelte affected by cross-site scripting via spread attributes in Svelte SSR
- Affected:
- <5.51.5
- Fixed in:
- 5.51.5
- Source:
- OSV source · Advisory
Latest release
5.33.19
Released 10 Jun 2025 · stable
https://github.com/sveltejs/svelte/releases/tag/svelte%405.33.19Previous releases
5.33.18
8 Jun 2025
5.33.17
7 Jun 2025
5.33.16
7 Jun 2025
Release history
20 concrete releases tracked for this line.
| Version | Release date | Channel | Source |
|---|---|---|---|
| 5.33.19 | 10 Jun 2025 | stable | Source |
| 5.33.18 | 8 Jun 2025 | stable | Source |
| 5.33.17 | 7 Jun 2025 | stable | Source |
| 5.33.16 | 7 Jun 2025 | stable | Source |
| 5.33.15 | 6 Jun 2025 | stable | Source |
| 5.33.14 | 2 Jun 2025 | stable | Source |
| 5.33.13 | 2 Jun 2025 | stable | Source |
| 5.33.12 | 1 Jun 2025 | stable | Source |
| 5.33.11 | 31 May 2025 | stable | Source |
| 5.33.10 | 29 May 2025 | stable | Source |
| 5.33.9 | 29 May 2025 | stable | Source |
| 5.33.8 | 29 May 2025 | stable | Source |
| 5.33.7 | 29 May 2025 | stable | Source |
| 5.33.6 | 29 May 2025 | stable | Source |
| 5.33.5 | 28 May 2025 | stable | Source |
| 5.33.4 | 27 May 2025 | stable | Source |
| 5.33.3 | 26 May 2025 | stable | Source |
| 5.33.2 | 25 May 2025 | stable | Source |
| 5.33.1 | 22 May 2025 | stable | Source |
| 5.33.0 | 22 May 2025 | stable | Source |
Release activity
- Total releases
- 20
- Last 30 days
- 0
- Last 90 days
- 0
- Avg. interval
- ~1 days
- Most recent
- 10 Jun 2025
Should I use this version?
Suitable for new deployments
Svelte 5.33 is currently supported (standard support).
Version comparison
Compact comparison against the nearest relevant release lines.
Compatibility
Evidence-backed compatibility results involving Svelte 5.33. Only combinations CompatHub can evaluate from upstream sources are listed.
Compatible targets
Sources
Where this information comes from.
Lifecycle sources
- Svelte GitHub Releasesfirst party · high confidence
Official source: https://github.com/sveltejs/svelte/releases
Last verified 2 Sept 2026
- Svelte npm engines.nodefirst party
Official source: https://www.npmjs.com/package/svelte
Verification time not recorded
- OSV.devfirst party
Official source: https://osv.dev
Verification time not recorded
- NVD (NIST)first party
Official source: https://nvd.nist.gov
Verification time not recorded
- CISA Known Exploited Vulnerabilitiesfirst party
Official source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Verification time not recorded
Release sources
- Svelte GitHub Releasesfirst party · high confidence
Official source: https://github.com/sveltejs/svelte/releases
Last verified 2 Sept 2026
Data coverage
Last checked = last successful upstream check. Latest source update = when upstream content last changed.
- Releases tracked
- 20
- Lifecycle periods
- 1
- EOL
- Not officially published
- Provenance records
- 2
- Data last checked
- 2 Sept 2026
- Latest source update
- 2 Sept 2026
EOL: Not officially published