VDB
RHSA-2026:53364
RHSA-2026:53364
PUBLISHED
CVSS 7.5 HIGH
A remote attacker can exploit this by providing specially crafted BER/CER/DER-encoded ASN.1 data with a large exponent in the REAL value. When the application subsequently prints, logs, compares, or performs arithmetic on the decoded value, this can cause excessive CPU and memory consumption, leading to a denial of service (DoS).
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | resource-agents-0:4.9.0-54.el8_10.37.src as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debugsource-0:4.9.0-54.el8_10.37.ppc64le as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-paf-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-paf-0:4.9.0-54.el8_10.37.s390x as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-aliyun-debuginfo-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debugsource-0:4.9.0-54.el8_10.37.s390x as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-gcp-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-paf-0:4.9.0-54.el8_10.37.ppc64le as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debugsource-0:4.9.0-54.el8_10.37.ppc64le as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-paf-0:4.9.0-54.el8_10.37.ppc64le as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debugsource-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debuginfo-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-aliyun-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-paf-0:4.9.0-54.el8_10.37.aarch64 as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debuginfo-0:4.9.0-54.el8_10.37.aarch64 as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-paf-0:4.9.0-54.el8_10.37.s390x as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-0:4.9.0-54.el8_10.37.s390x as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-debugsource-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux HighAvailability (v. 8) | 4.9.0-54.el8 |
| Red Hat | resource-agents-0:4.9.0-54.el8_10.37.x86_64 as a component of Red Hat Enterprise Linux ResilientStorage (v. 8) | 4.9.0-54.el8 |
…and 16 more
Timeline
- Aug 11, 2026 CVE Published
- Aug 18, 2026 CVE Updated
- Aug 18, 2026 Distribution Patch
- Aug 18, 2026 Distribution Patch
- Aug 18, 2026 Security Advisory
- Aug 18, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:53364 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2500041 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_53364.json advisory
- https://access.redhat.com/security/cve/CVE-2026-59886 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-59886 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-59886 advisory
- https://github.com/pyasn1/pyasn1/commit/e60c691cb91addb8fcefa2f537e85ede6fb1e886 advisory
- https://github.com/pyasn1/pyasn1/releases/tag/v0.6.4 advisory
- https://github.com/pyasn1/pyasn1/security/advisories/GHSA-hm4w-wwcw-mr6r advisory