synced 5 MIN AGO
01 Record

CVE-2026-91096

In proxygen from v2024.10.28.00 until v2026.09.28.00, WebTransportImpl::terminateSessionStreams (WebTransportImpl::destroy in releases before v2025.08.18.00) failed to unregister read callbacks for

UnratedPUBLISHEDCNA: Meta
CNA base scoreUnratedNo CNA CVSS vector

02 Description

In proxygen from v2024.10.28.00 until v2026.09.28.00, WebTransportImpl::terminateSessionStreams (WebTransportImpl::destroy in releases before v2025.08.18.00) failed to unregister read callbacks for

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
Not scored by EPSS
EPSS percentile
Not scored by EPSS
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Deferred. NVD last modified this record on 2026-09-28.
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
2026-09-28 20:44Z1 HR AGO
Last updated
2026-09-28 20:44Z1 HR AGO
Reserved
2026-09-14
Assigning CNA
Meta
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
No CWE assigned
Data version
5.2
Document digest
85569dea428090c82ceb49c7fdc94b43c41f69b89f32d23da4edd1fe39c13079

05 Affected products

VendorProductVersionsPlatforms
Facebookproxygenv2024.10.28.00 to < v2026.09.28.00—

06 References