Allocation of Resources Without Limits or Throttling Affecting openssl package, versions [1.0.2u,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
- creditUnknown
Introduced: 29 Sep 2026
NewCVE-2026-35189 (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 X.509 extension caching of CRL distribution points, which expands each nameRelativeToCRLIssuer entry into heap structures disproportionate to its encoded size. An attacker can force allocation of hundreds of megabytes by presenting a certificate carrying many relative CRL distribution points. This requires the application to verify an attacker supplied certificate, and the certificate stays under the roughly 100 KiB peer limit, so size based admission control does not reject it.