Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 7.5 High · fixed in Red Hat package updates : patch Red Hat asn1 soon.
Data as of 14 Nov 2026, 20:44 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 7.5 |
|---|
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.27.0-rc.3, 1.26.6, 1.25.13
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Upgrade encoding/asn1 to 1.27.0-rc.3, 1.26.6 or 1.25.13.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Go standard libraryencoding/asn1 | Affected
| Fixed in
|
| Go standard libraryencoding/asn1 | Affected
| Fixed in
|
| Go standard libraryencoding/asn1 | Affected
| Fixed in
|
Goencoding/asn1pkg:golang/encoding/asn1Other threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available from Red Hat as part of updated Hardened Images RPMs, specifically golang1.25 version 1.25.13-0.1.hum1 and related packages. Users should apply these updates promptly to remediate the vulnerability. No additional mitigations are specified or required beyond applying the official updates.
Description
CVE-2026-33818 is a high-severity denial-of-service vulnerability in the Go standard library's encoding/asn1 component. It allows an attacker to cause uncontrolled resource consumption via malformed inputs, leading to denial of service. Red Hat has released updated Hardened Images RPMs containing patched versions of Go 1.25.13 to remediate this and related issues. The vulnerability affects various Red Hat products that include these Go components. No known exploits are reported in the wild.
References
- access.redhat.com/errata/RHSA-2026:54836 (opens in a new tab)
- images.redhat.com (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56853 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56860 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56859 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-33818 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56862 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56858 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_54836.json (opens in a new tab)
- ubuntu.com/security/CVE-2026-33818 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-33818 (opens in a new tab)
- github.com/golang/go/issues/80405 (opens in a new tab)
- go.dev/cl/814980 (opens in a new tab)
- go.dev/issue/80405 (opens in a new tab)
- groups.google.com/g/golang-announce/c/94pEornpRlI (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-33818 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-5972 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60304 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2515815 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2515820 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2515827 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2515838 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2515839 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2515840 (opens in a new tab)
- issues.redhat.com/browse/RHEL-246425 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_60304.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60305 (opens in a new tab)
- issues.redhat.com/browse/RHEL-246426 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_60305.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:60306 (opens in a new tab)
- issues.redhat.com/browse/RHEL-246423 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_60306.json (opens in a new tab)
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2850.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2850 (opens in a new tab)
- seclists.org/oss-sec/2026/q3/487 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6088 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6089 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6090 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6091 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6179 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6180 (opens in a new tab)
- pkg.go.dev/vuln/GO-2026-6218 (opens in a new tab)
- lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/XLJUFMJN2M3YEPFPNXPF4GTNYPWSPD3E/ (opens in a new tab)
- lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/CQT5XHRMVVQQJMPZ4VMFVOHKMW2F4VL2/ (opens in a new tab)
- lists.suse.com/pipermail/sle-security-updates/2026-August/028390.html (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:56223 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:56143 (opens in a new tab)
- lists.suse.com/pipermail/sle-security-updates/2026-August/028389.html (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:54580 (opens in a new tab)
- lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UHHCXFWGC6CBH4D6OH2F64XPDLP3QFX2/ (opens in a new tab)
- lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/53ECMK7DHSIH5JIRF6WZ4NUGYR34BBHA/ (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:61882 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_61882.json (opens in a new tab)
- github.com/tektoncd/cli (opens in a new tab)
- github.com/hashicorp/vault.git (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62405 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62405.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62404 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62404.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:63127 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_63127.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62406 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2467809 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2467820 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62406.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:63163 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_63163.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62407 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62407.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62631 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2484204 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62631.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62753 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62753.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62602 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62602.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:63119 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_63119.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:62803 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_62803.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:66363 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-41178 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56852 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-71556 (opens in a new tab)
- docs.redhat.com/en/documentation/openshift_container_platform/latest/html/security_and_compliance/external-secrets-operator-for-red-hat-openshift (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66363.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:64827 (opens in a new tab)
- docs.redhat.com/en/documentation/openshift_container_platform/latest/html/postinstallation_configuration/configuring-multi-architecture-compute-machines-on-an-openshift-cluster (opens in a new tab)
- github.com/openshift/openshift-docs/blob/main/post_installation_configuration/configuring-multi-arch-compute-machines/multi-arch-tuning-operator-release-notes.adoc (opens in a new tab)
- github.com/openshift/openshift-docs/blob/main/post_installation_configuration/configuring-multi-arch-compute-machines/multiarch-tuning-operator.adoc (opens in a new tab)
- github.com/outrigger-project/multiarch-tuning-operator (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_64827.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:67975 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2484830 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_67975.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:68527 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_68527.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70394 (opens in a new tab)
- redhat.atlassian.net/browse/WTO-523 (opens in a new tab)
- redhat.atlassian.net/browse/WTO-530 (opens in a new tab)
- redhat.atlassian.net/browse/WTO-537 (opens in a new tab)
- redhat.atlassian.net/browse/WTO-544 (opens in a new tab)
- redhat.atlassian.net/browse/WTO-551 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70394.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:71112 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.7/whats_new-async_updates (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.7 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2517518 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2517523 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2517527 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_71112.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:72885 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-42127 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-42151 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-42504 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_72885.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70593 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-65819 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-67213 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-75899 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-75931 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-75975 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-76172 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-84292 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-84375 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-84394 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-84445 (opens in a new tab)
- docs.openshift.com/container-platform/latest/observability/network_observability/network-observability-operator-release-notes.html (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70593.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:73538 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-39820 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-42499 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73538.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:74632 (opens in a new tab)
- access.redhat.com/documentation/en-us/red_hat_satellite/6.18/html/updating_red_hat_satellite/index (opens in a new tab)
- catalog.redhat.com/software/containers/search (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_satellite/6.18/html/installing_satellite_server_in_a_connected_network_environment/performing-additional-configuration-on-server_satellite (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_satellite/6.18/html/installing_satellite_server_in_a_disconnected_network_environment/performing-additional-configuration (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_74632.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:75689 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2533175 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_75689.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:73348 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73348.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:77269 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-50162 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-56854 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_openshift_gitops/1.21/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77269.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:77273 (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_openshift_gitops/1.20/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77273.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82843 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_82843.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70614 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2480756 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70614.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:82315 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-73501 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-73502 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-76905 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-77354 (opens in a new tab)
- developers.redhat.com/products/mta/overview (opens in a new tab)
- docs.redhat.com/en/documentation/migration_toolkit_for_applications/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_82315.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:69928 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_69928.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83631 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_83631.json (opens in a new tab)