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10 vulnerabilities found for devalue by sveltejs
CVE-2026-42570 (GCVE-0-2026-42570)
Vulnerability from nvd – Published: 2026-06-09 16:12 – Updated: 2026-06-30 12:08
VLAI
Title
Svelte devalue: DoS via sparse array deserialization
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/206ca6… | x_refsource_MISC |
| https://github.com/sveltejs/devalue/releases/tag/v5.8.1 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-42570 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2487050 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| sveltejs | devalue |
Affected:
>= 5.6.3, < 5.8.1
|
|
| Red Hat | Red Hat Build of Podman Desktop |
cpe:/a:redhat:podman_desktop:1 |
|
| Red Hat | Red Hat Trusted Artifact Signer |
cpe:/a:redhat:trusted_artifact_signer:1 |
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CVE-2026-30226 (GCVE-0-2026-30226)
Vulnerability from nvd – Published: 2026-03-11 17:47 – Updated: 2026-03-12 13:51
VLAI
Title
devalue has prototype pollution in devalue.parse and devalue.unflatten
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In devalue v5.6.3 and earlier, devalue.parse and devalue.unflatten were susceptible to prototype pollution via maliciously crafted payloads. Successful exploitation could lead to Denial of Service (DoS) or type confusion. This vulnerability is fixed in 5.6.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
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CVE-2026-22775 (GCVE-0-2026-22775)
Vulnerability from nvd – Published: 2026-01-15 18:59 – Updated: 2026-06-30 12:06
VLAI
Title
devalue vulnerable to denial of service due to memory/CPU exhaustion in devalue.parse
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.1.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the ArrayBuffer hydration expecting base64 encoded strings as input, but not checking the assumption before decoding the input. This vulnerability is fixed in 5.6.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/117558… | x_refsource_MISC |
| https://github.com/sveltejs/devalue/releases/tag/v5.6.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-22775 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2430109 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:2926 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2144 | vendor-advisoryx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| sveltejs | devalue |
Affected:
>= 5.1.0, < 5.6.2
|
|
| Red Hat | Red Hat Trusted Artifact Signer 1.2 |
cpe:/a:redhat:trusted_artifact_signer:1.2::el9 |
|
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cpe:/a:redhat:trusted_artifact_signer:1.3::el9 |
|
| Red Hat | Red Hat Build of Podman Desktop - Tech Preview |
cpe:/a:redhat:podman_desktop:0 |
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CVE-2026-22774 (GCVE-0-2026-22774)
Vulnerability from nvd – Published: 2026-01-15 18:53 – Updated: 2026-06-30 12:06
VLAI
Title
devalue vulnerable to denial of service due to memory exhaustion in devalue.parse
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/e46afa… | x_refsource_MISC |
| https://github.com/sveltejs/devalue/releases/tag/v5.6.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-22774 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2430095 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:2926 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2144 | vendor-advisoryx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| sveltejs | devalue |
Affected:
>= 5.3.0, < 5.6.2
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|
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cpe:/a:redhat:trusted_artifact_signer:1.2::el9 |
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cpe:/a:redhat:trusted_artifact_signer:1.3::el9 |
|
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cpe:/a:redhat:podman_desktop:0 |
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CVE-2025-57820 (GCVE-0-2025-57820)
Vulnerability from nvd – Published: 2025-08-26 22:33 – Updated: 2025-08-27 20:42
VLAI
Title
Svelte devalue vulnerable to prototype pollution
Summary
Svelte devalue is a utility library. Prior to version 5.3.2, a string passed to devalue.parse could represent an object with a __proto__ property and devalue.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to prototype pollution. This issue has been fixed in version 5.3.2
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/0623a4… | x_refsource_MISC |
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CVE-2026-42570 (GCVE-0-2026-42570)
Vulnerability from cvelistv5 – Published: 2026-06-09 16:12 – Updated: 2026-06-30 12:08
VLAI
Title
Svelte devalue: DoS via sparse array deserialization
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/206ca6… | x_refsource_MISC |
| https://github.com/sveltejs/devalue/releases/tag/v5.8.1 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-42570 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2487050 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| sveltejs | devalue |
Affected:
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|
|
| Red Hat | Red Hat Build of Podman Desktop |
cpe:/a:redhat:podman_desktop:1 |
|
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cpe:/a:redhat:trusted_artifact_signer:1 |
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CVE-2026-30226 (GCVE-0-2026-30226)
Vulnerability from cvelistv5 – Published: 2026-03-11 17:47 – Updated: 2026-03-12 13:51
VLAI
Title
devalue has prototype pollution in devalue.parse and devalue.unflatten
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. In devalue v5.6.3 and earlier, devalue.parse and devalue.unflatten were susceptible to prototype pollution via maliciously crafted payloads. Successful exploitation could lead to Denial of Service (DoS) or type confusion. This vulnerability is fixed in 5.6.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
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CVE-2026-22775 (GCVE-0-2026-22775)
Vulnerability from cvelistv5 – Published: 2026-01-15 18:59 – Updated: 2026-06-30 12:06
VLAI
Title
devalue vulnerable to denial of service due to memory/CPU exhaustion in devalue.parse
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.1.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the ArrayBuffer hydration expecting base64 encoded strings as input, but not checking the assumption before decoding the input. This vulnerability is fixed in 5.6.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/117558… | x_refsource_MISC |
| https://github.com/sveltejs/devalue/releases/tag/v5.6.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-22775 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2430109 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:2926 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2144 | vendor-advisoryx_refsource_REDHAT |
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4 products
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cpe:/a:redhat:podman_desktop:0 |
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CVE-2026-22774 (GCVE-0-2026-22774)
Vulnerability from cvelistv5 – Published: 2026-01-15 18:53 – Updated: 2026-06-30 12:06
VLAI
Title
devalue vulnerable to denial of service due to memory exhaustion in devalue.parse
Summary
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, certain inputs can cause devalue.parse to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using devalue.parse on externally-supplied data. The root cause is the typed array hydration expecting an ArrayBuffer as input, but not checking the assumption before creating the typed array. This vulnerability is fixed in 5.6.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/e46afa… | x_refsource_MISC |
| https://github.com/sveltejs/devalue/releases/tag/v5.6.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-22774 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2430095 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:2926 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:2144 | vendor-advisoryx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| sveltejs | devalue |
Affected:
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cpe:/a:redhat:podman_desktop:0 |
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CVE-2025-57820 (GCVE-0-2025-57820)
Vulnerability from cvelistv5 – Published: 2025-08-26 22:33 – Updated: 2025-08-27 20:42
VLAI
Title
Svelte devalue vulnerable to prototype pollution
Summary
Svelte devalue is a utility library. Prior to version 5.3.2, a string passed to devalue.parse could represent an object with a __proto__ property and devalue.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to prototype pollution. This issue has been fixed in version 5.3.2
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sveltejs/devalue/security/advi… | x_refsource_CONFIRM |
| https://github.com/sveltejs/devalue/commit/0623a4… | x_refsource_MISC |
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