CVE-2026-92779 (GCVE-0-2026-92779)
Vulnerability from cvelistv5 – Published: 2026-09-16 20:32 – Updated: 2026-09-16 20:32
VLAI
EPSS
VEX
Title
Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings
Summary
Builder.io Gen2 SDKs through versions 5.2.11 and 0.25.13 contain a prototype pollution vulnerability in the deep-set helper function that processes content block bindings without validation. Attackers can craft content blocks with binding keys containing __proto__, prototype, or constructor paths to pollute Object.prototype during rendering, affecting all subsequent objects created in the process including other tenants' renders.
Severity
CWE
- CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/BuilderIO/builder/issues/4823 | issue-tracking |
| https://github.com/BuilderIO/builder | product |
| https://github.com/BuilderIO/builder/blob/main/pa… | technical-description |
| https://github.com/BuilderIO/builder/blob/main/pa… | technical-description |
| https://www.vulncheck.com/advisories/builder-io-g… | third-party-advisory |
Impacted products
7 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| BuilderIO | @builder.io/sdk-react |
Affected:
0 , ≤ 5.2.11
(semver)
|
guessed | |
| BuilderIO | @builder.io/sdk-vue |
Affected:
0 , ≤ 5.2.11
(semver)
|
guessed | |
| BuilderIO | @builder.io/sdk-svelte |
Affected:
0 , ≤ 5.2.11
(semver)
|
guessed | |
| BuilderIO | @builder.io/sdk-solid |
Affected:
0 , ≤ 5.2.11
(semver)
|
guessed | |
| BuilderIO | @builder.io/sdk-qwik |
Affected:
0 , ≤ 0.25.13
(semver)
|
guessed | |
| BuilderIO | @builder.io/sdk-angular |
Affected:
0 , ≤ 0.25.13
(semver)
|
guessed | |
| BuilderIO | @builder.io/sdk-react-nextjs |
Affected:
0 , ≤ 0.25.13
(semver)
|
guessed |
Date Public
2026-08-25 00:00
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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