Asymmetric Resource Consumption (Amplification) Affecting openssl package, versions [1.0.2u,1.1.0l)[1.1.1q,3.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-OPENSSL-19267464
- published26 Aug 2026
- disclosed25 Aug 2026
- creditAmazon Web Services
Introduced: 25 Aug 2026
NewCVE-2026-54874 (opens in a new tab)How to fix?
Upgrade openssl to version 1.1.0l, 3.1.0 or higher.
Overview
Affected versions of this package are vulnerable to Asymmetric Resource Consumption (Amplification) in dtls_rlayer_buffer_record() in ssl/record/methods/dtls_meth.c. An attacker can cause a DTLS endpoint to retain excessive memory by sending a stream of small next-epoch records during an in-progress handshake.
When OpenSSL buffers those early records, it keeps the entire large read buffer for each queued entry instead of only the bytes that make up the record on the wire, so a peer can amplify a small amount of UDP traffic into about 1.7 MB of heap retention per connection. This can exhaust memory on DTLS servers and degrade or deny service.