01 Record
CVE-2026-92779
Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings
HighPUBLISHEDCNA: VulnCheck
CNA base score7.2 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
02 Description
Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindings
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.49% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 41.8% of scored records. A rank, not a probability.
- NVD base score
- 7.2 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Deferred. NVD last modified this record on 2026-09-24.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-16 20:32Z1 MO AGO
- Last updated
- 2026-09-17 19:25Z1 MO AGO
- Reserved
- 2026-09-16
- Assigning CNA
- VulnCheck
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.2)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
- Weaknesses
- CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant
- Data version
- 5.2
- Document digest
- 6574f3ba79fd0cd6eb4d0f7ef8070de5caf926e506bef6e8d157bd1e5b0c6393
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comGitHub Issue #4823https://github.com/BuilderIO/builder/issues/4823
- github.comhttps://github.com/BuilderIO/builder
- github.combinding keys from content JSON are used as the write pathhttps://github.com/BuilderIO/builder/blob/main/packages/sdks/src/functions/get-processed-block.ts#L84-L93
- github.comthe deep-set helper has no __proto__ guardhttps://github.com/BuilderIO/builder/blob/main/packages/sdks/src/functions/set.ts#L7-L26
- www.vulncheck.comVulnCheck Advisory: Builder.io Gen2 SDKs through 5.2.11 Prototype Pollution via Bindingshttps://www.vulncheck.com/advisories/builder-io-gen2-sdks-through-5.2.11-prototype-pollution-via-bindings