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01 Record

CVE-2026-54425

Apache bRPC: Stack Exhaustion via Recursive HPACK Dynamic Table Size Update Decoding

UnratedPUBLISHEDCNA: apache
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Apache bRPC: Stack Exhaustion via Recursive HPACK Dynamic Table Size Update Decoding

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
0.25% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 17.1% of scored records. A rank, not a probability.
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 2026-10-26.
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
2026-10-21 11:31Z8 DAYS AGO
Last updated
2026-10-21 11:31Z8 DAYS AGO
Reserved
2026-06-14
Assigning CNA
apache
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.2
Document digest
a351779bf2542d83ae776245a4fdf374dd2e09d1c05030c18d2c9f424edf8464

05 Affected products

VendorProductVersionsPlatforms
Apache Software FoundationApache bRPC0 to < 1.18.0—

06 References