Lookup for vulnerable packages by Package URL.
| Purl | pkg:npm/svelte@5.51.5 |
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| Type | npm |
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| Namespace | |
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| Name | svelte |
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| Version | 5.51.5 |
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| Qualifiers |
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| Subpath | |
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| Is_vulnerable | true |
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| Next_non_vulnerable_version | 5.55.7 |
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| Latest_non_vulnerable_version | 5.55.7 |
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| Affected_by_vulnerabilities |
| 0 |
| url |
VCID-3338-judc-5ke1 |
| vulnerability_id |
VCID-3338-judc-5ke1 |
| summary |
Svelte is a performance oriented web framework. Prior to version 5.55.7, Svelte was vulnerable to DOM clobbering of its internal framework state on elements, potentially leading to XSS attacks. This issue has been patched in version 5.55.7. |
| references |
|
| fixed_packages |
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| aliases |
CVE-2026-42573, GHSA-rcqx-6q8c-2c42
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-3338-judc-5ke1 |
|
| 1 |
| url |
VCID-cxqy-4aua-v3bt |
| vulnerability_id |
VCID-cxqy-4aua-v3bt |
| summary |
Svelte: SSR XSS via Insecure Promise Serialization in hydratable
Contents of `hydratable` promises were not properly stringified, potentially leading to an XSS exploit. You are vulnerable if all of the following is true:
- you are using `hydratable` (an experimental feature at the time of this report)
- you are passing attacker-controlled input such that a synchronous value is hydrated, then a promise value, e.g. `hydratable('someKey', () => [synchronousValue, promiseValue])` |
| references |
|
| fixed_packages |
|
| aliases |
GHSA-f3cj-j4f6-wq85
|
| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-cxqy-4aua-v3bt |
|
| 2 |
| url |
VCID-eub6-k2yh-suhb |
| vulnerability_id |
VCID-eub6-k2yh-suhb |
| summary |
Svelte performance oriented web framework. Prior to version 5.53.5, the contents of `bind:innerText` and `bind:textContent` on `contenteditable` elements were not properly escaped. This could enable HTML injection and Cross-Site Scripting (XSS) if rendering untrusted data as the binding's initial value on the server. Version 5.53.5 fixes the issue. |
| references |
|
| fixed_packages |
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| aliases |
CVE-2026-27901, GHSA-phwv-c562-gvmh
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-eub6-k2yh-suhb |
|
| 3 |
| url |
VCID-vbz4-avaq-7kh6 |
| vulnerability_id |
VCID-vbz4-avaq-7kh6 |
| summary |
Svelte is a performance oriented web framework. Prior to version 5.55.7, when using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an application spreads user-controlled or external data as element attributes, an attacker can inject malicious event handlers that execute in victims' browsers. Note that this vulnerability only triggers if the user's browser has JavaScript enabled but Svelte's hydration mechanism does not reach the vulnerable element before the event fires. This issue has been patched in version 5.55.7. |
| references |
|
| fixed_packages |
|
| aliases |
CVE-2026-42599, GHSA-pr6f-5x2q-rwfp
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-vbz4-avaq-7kh6 |
|
| 4 |
| url |
VCID-ycam-n781-gkf8 |
| vulnerability_id |
VCID-ycam-n781-gkf8 |
| summary |
Svelte is a performance oriented web framework. From version 5.51.5 to before version 5.55.7, an internal regex in the Svelte runtime can take exponential time to test in <svelte:element this={tag}></svelte:element>. This issue has been patched in version 5.55.7. |
| references |
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| fixed_packages |
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| aliases |
CVE-2026-42567, GHSA-9rmh-mm8f-r9h6
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-ycam-n781-gkf8 |
|
|
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| Fixing_vulnerabilities |
| 0 |
| url |
VCID-4hh1-vzj8-bqfy |
| vulnerability_id |
VCID-4hh1-vzj8-bqfy |
| summary |
svelte performance oriented web framework. Prior to 5.51.5, when using <svelte:element this={tag}> in server-side rendering, the provided tag name is not validated or sanitized before being emitted into the HTML output. If the tag string contains unexpected characters, it can result in HTML injection in the SSR output. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5. |
| references |
|
| fixed_packages |
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| aliases |
CVE-2026-27122, GHSA-m56q-vw4c-c2cp
|
| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-4hh1-vzj8-bqfy |
|
| 1 |
| url |
VCID-w8kg-2qq6-xyet |
| vulnerability_id |
VCID-w8kg-2qq6-xyet |
| summary |
svelte performance oriented web framework. Versions of svelte prior to 5.51.5 are vulnerable to cross-site scripting (XSS) during server-side rendering. When using spread syntax to render attributes from untrusted data, event handler properties are included in the rendered HTML output. If an application spreads user-controlled or external data as element attributes, an attacker can inject malicious event handlers that execute in victims' browsers. This vulnerability is fixed in 5.51.5. |
| references |
|
| fixed_packages |
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| aliases |
CVE-2026-27121, GHSA-f7gr-6p89-r883
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-w8kg-2qq6-xyet |
|
| 2 |
| url |
VCID-x1g1-8b9m-5yhz |
| vulnerability_id |
VCID-x1g1-8b9m-5yhz |
| summary |
svelte performance oriented web framework. Prior to 5.51.5, in server-side rendering, attribute spreading on elements (e.g. <div {...attrs}>) enumerates inherited properties from the object's prototype chain rather than only own properties. In environments where Object.prototype has already been polluted — a precondition outside of Svelte's control — this can cause unexpected attributes to appear in SSR output or cause SSR to throw errors. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5. |
| references |
|
| fixed_packages |
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| aliases |
CVE-2026-27125, GHSA-crpf-4hrx-3jrp
|
| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-x1g1-8b9m-5yhz |
|
| 3 |
| url |
VCID-zmre-1nsj-9ug6 |
| vulnerability_id |
VCID-zmre-1nsj-9ug6 |
| summary |
svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an <option> element does not properly escape its content, potentially allowing HTML injection in the SSR output. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5. |
| references |
|
| fixed_packages |
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| aliases |
CVE-2026-27119, GHSA-h7h7-mm68-gmrc
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| risk_score |
3.1 |
| exploitability |
0.5 |
| weighted_severity |
6.2 |
| resource_url |
http://public2.vulnerablecode.io/vulnerabilities/VCID-zmre-1nsj-9ug6 |
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| Risk_score | 3.1 |
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| Resource_url | http://public2.vulnerablecode.io/packages/pkg:npm/svelte@5.51.5 |
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