Allocation of Resources Without Limits or Throttling Affecting openssl package, versions [3.4.0,3.4.8)[3.5.0,3.5.9)[3.6.0,3.6.5)[4.0.1,4.0.3)
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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- published6 Oct 2026
- disclosed29 Sept 2026
- creditZhen Yan,Bhabani Sankar Das
Introduced: 29 Sep 2026
NewCVE-2026-54873 (opens in a new tab)How to fix?
Upgrade openssl to version 3.4.8, 3.5.9, 3.6.5, 4.0.3 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the QUIC receive path, which holds a reference to the packet buffer until the application reads the stream data out of it. An attacker can hold that memory allocated for as long as they choose by sending packets arranged so the decision to release the buffer rests with them. This requires an established QUIC connection.