RHSA-2026:10065
Vulnerability from csaf_redhat - Published: 2026-04-23 06:06 - Updated: 2026-04-23 06:08A flaw was found in libxslt package. Processing web content may disclose sensitive information. This issue was addressed with improved memory handling.
A flaw was found in NGINX. When NGINX is configured to proxy to upstream Transport Layer Security (TLS) servers, An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server.
A flaw was found in the OpenSSH GSSAPI (Generic Security Service Application Program Interface) delta patches, as included in various Linux distributions. A remote attacker could exploit this by sending an unexpected GSSAPI message type during the key exchange process. This occurs because the `sshpkt_disconnect()` function, when called on an error, does not properly terminate the process, leading to the continued execution of the program with uninitialized connection variables. Accessing these uninitialized variables can lead to undefined behavior, potentially resulting in information disclosure or a denial of service.
A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
A flaw was found in Python. The `webbrowser.open()` API, used to launch web browsers, does not properly sanitize input. This allows a remote attacker to craft a malicious URL containing leading dashes. When such a URL is opened, certain web browsers may interpret these dashes as command-line options, which could lead to unexpected behavior, information disclosure, or potentially arbitrary code execution, impacting the integrity of the system.
A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.
The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid.
A flaw was found in Vim, an open source, command line text editor. This heap buffer overflow vulnerability exists in the tag file resolution logic when processing the 'helpfile' option. A local user could exploit this by providing a specially crafted 'helpfile' option value, leading to a heap buffer overflow. This could result in arbitrary code execution or a denial of service.
A flaw was found in nghttp2. Due to missing internal state validation, the library continues to process incoming data even after a session has been terminated. A remote attacker could exploit this by sending a specially crafted HTTP/2 frame, leading to an assertion failure and a denial of service (DoS).
A flaw was found in NGINX, specifically within the ngx_mail_auth_http_module. When this module is enabled, and CRAM-MD5 or APOP authentication is active with an authentication server that permits retries, undisclosed requests can cause NGINX worker processes to terminate. This can lead to a Denial of Service (DoS), making the affected NGINX instance unavailable to legitimate users.
A flaw was found in NGINX. A remote attacker can exploit a buffer overflow vulnerability within the ngx_http_dav_module module. This occurs when the NGINX configuration uses DAV module MOVE or COPY methods in conjunction with prefix location and alias directives. Successful exploitation may lead to the termination of the NGINX worker process, resulting in a Denial of Service (DoS), or allow for the modification of source or destination file names outside the intended document root.
A flaw was found in NGINX Open Source, specifically within the ngx_http_mp4_module. An attacker can exploit this memory corruption vulnerability by providing a specially crafted MP4 file. This can lead to an over-read or over-write of NGINX worker memory, causing the worker to terminate and resulting in a Denial of Service (DoS). This issue affects 32-bit NGINX Open Source when built with the ngx_http_mp4_module and the mp4 directive is used.
A flaw was found in Vim, an open-source command-line text editor. Specifically, an operating system (OS) command injection vulnerability exists in the `netrw` standard plugin. A remote attacker could exploit this by tricking a user into opening a specially crafted URL, such as one using the `scp://` protocol handler. Successful exploitation allows the attacker to execute arbitrary shell commands with the same privileges as the Vim process, leading to potential system compromise.
A flaw was found in Vim. This vulnerability, a heap-buffer-overflow and a segmentation fault, exists in the swap file recovery logic. A local attacker could exploit this by providing a specially crafted swap file. This could lead to a denial of service (DoS) or potentially information disclosure.
A flaw was found in NGINX's ngx_http_mp4_module. This Out-of-Bounds Read/Write vulnerability occurs due to improper handling of specially crafted MP4 files. A local authenticated attacker, by supplying a malicious MP4 file, can trigger a buffer over-read or overwrite in worker memory. This can lead to process termination, potentially causing a denial-of-service or, under certain conditions, achieving code execution.
A flaw was found in Vim. By including a newline character in a pattern passed to Vim's glob() function, an attacker may be able to execute arbitrary shell commands. This command injection vulnerability allows for arbitrary code execution, depending on the user's shell settings.
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"category": "external",
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{
"category": "external",
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"category": "external",
"summary": "https://support.apple.com/en-us/HT213927",
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{
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"name": "Acceptance of Extraneous Untrusted Data With Trusted Data"
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"title": "Vulnerability description"
},
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"text": "nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-1642"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-1642",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1642"
},
{
"category": "external",
"summary": "https://my.f5.com/manage/s/article/K000159824",
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}
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"title": "nginx: NGINX: Data injection via man-in-the-middle attack on TLS proxied connections"
},
{
"cve": "CVE-2026-3497",
"cwe": {
"id": "CWE-824",
"name": "Access of Uninitialized Pointer"
},
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"ids": [
{
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"text": "2447085"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the OpenSSH GSSAPI (Generic Security Service Application Program Interface) delta patches, as included in various Linux distributions. A remote attacker could exploit this by sending an unexpected GSSAPI message type during the key exchange process. This occurs because the `sshpkt_disconnect()` function, when called on an error, does not properly terminate the process, leading to the continued execution of the program with uninitialized connection variables. Accessing these uninitialized variables can lead to undefined behavior, potentially resulting in information disclosure or a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "IMPORTANT: This vulnerability affects the OpenSSH GSSAPI delta as implemented in Red Hat Enterprise Linux and OpenShift Container Platform. An unauthenticated attacker could send a specially crafted GSSAPI message during key exchange, leading to the use of uninitialized variables and potentially undefined behavior. The severity of the impact is dependent on compiler hardening configurations.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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],
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"references": [
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"summary": "Canonical URL",
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},
{
"category": "external",
"summary": "RHBZ#2447085",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447085"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-3497",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3497"
},
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3497"
},
{
"category": "external",
"summary": "https://ubuntu.com/security/CVE-2026-3497",
"url": "https://ubuntu.com/security/CVE-2026-3497"
},
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"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2026/03/12/3",
"url": "https://www.openwall.com/lists/oss-security/2026/03/12/3"
}
],
"release_date": "2026-03-12T18:27:44.917000+00:00",
"remediations": [
{
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"date": "2026-04-23T06:06:23+00:00",
"details": "The container images provided by this release, apart from the installer, should be deployed using rhui-installer utility.\nSee the official documentation for more details.",
"product_ids": [
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},
{
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"details": "To mitigate this issue, disable GSSAPI key exchange in the OpenSSH server configuration. This prevents the server from processing GSSAPI messages, eliminating the vulnerability\u0027s attack surface.\n\nEdit `/etc/ssh/sshd_config` and add or modify the line:\n```\nGSSAPIKeyExchange no\n```\n\nAfter saving the changes, restart the `sshd` service for the mitigation to take effect. This action will prevent users from authenticating via GSSAPI.\n\n```\n# systemctl restart sshd\n```",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"products": [
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"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/installer-rhel9@sha256:8fbf461b33717d3463e4f802b1a257b7e43d60c3e9568f710df83db36a04a4fe_amd64",
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"threats": [
{
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"details": "Important"
}
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"title": "openssh: OpenSSH GSSAPI: Information disclosure or denial of service due to uninitialized variables"
},
{
"acknowledgments": [
{
"names": [
"Elhanan Haenel"
]
}
],
"cve": "CVE-2026-4111",
"cwe": {
"id": "CWE-835",
"name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
},
"discovery_date": "2026-03-11T11:18:51.609000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2446453"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "libarchive: Infinite Loop Denial of Service in RAR5 Decompression via archive_read_data() in libarchive",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The Red Hat Product Security team would likely assess the severity of this vulnerability as High because it allows remote attackers to cause a persistent denial-of-service condition using a small crafted archive file. Successful exploitation requires no authentication, no special configuration, and no user interaction in environments that automatically process uploaded archives. By repeatedly submitting malicious archives, an attacker can exhaust CPU resources or worker threads in services such as file upload systems, CI/CD pipelines, mail scanners, and content indexing services that rely on libarchive for archive extraction.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"summary": "RHBZ#2446453",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2446453"
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"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-4111",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-4111"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-4111",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4111"
},
{
"category": "external",
"summary": "https://github.com/libarchive/libarchive/pull/2877",
"url": "https://github.com/libarchive/libarchive/pull/2877"
}
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"details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
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{
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],
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},
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"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"text": "A flaw was found in NGINX, specifically within the ngx_mail_auth_http_module. When this module is enabled, and CRAM-MD5 or APOP authentication is active with an authentication server that permits retries, undisclosed requests can cause NGINX worker processes to terminate. This can lead to a Denial of Service (DoS), making the affected NGINX instance unavailable to legitimate users.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "NGINX: NGINX: Denial of Service via undisclosed requests when ngx_mail_auth_http_module is enabled",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
{
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},
{
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"scope": "UNCHANGED",
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},
{
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"cwe": {
"id": "CWE-120",
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{
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "NGINX: NGINX: Denial of Service or file modification via buffer overflow in ngx_http_dav_module",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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{
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"cwe": {
"id": "CWE-190",
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"ids": [
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"title": "Vulnerability description"
},
{
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"text": "NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"version": "3.1"
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"title": "NGINX: NGINX: Denial of Service due to memory corruption via crafted MP4 file"
},
{
"cve": "CVE-2026-28417",
"cwe": {
"id": "CWE-78",
"name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
},
"discovery_date": "2026-02-27T22:01:53.728412+00:00",
"ids": [
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"notes": [
{
"category": "description",
"text": "A flaw was found in Vim, an open-source command-line text editor. Specifically, an operating system (OS) command injection vulnerability exists in the `netrw` standard plugin. A remote attacker could exploit this by tricking a user into opening a specially crafted URL, such as one using the `scp://` protocol handler. Successful exploitation allows the attacker to execute arbitrary shell commands with the same privileges as the Vim process, leading to potential system compromise.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "vim: Vim: Arbitrary code execution via OS command injection in the netrw plugin",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The risk posed by this vulnerability is limited on Red Hat products due to user and system isolation features which are enabled by default. The impacts of this flaw will be limited by the active user\u0027s permissions and access control limits. Host systems are not at risk when following Red Hat guidelines and the root user account is not actively executing Vim.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28417"
},
{
"category": "external",
"summary": "https://github.com/vim/vim/commit/79348dbbc09332130f4c860",
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{
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"url": "https://github.com/vim/vim/releases/tag/v9.2.0073"
},
{
"category": "external",
"summary": "https://github.com/vim/vim/security/advisories/GHSA-m3xh-9434-g336",
"url": "https://github.com/vim/vim/security/advisories/GHSA-m3xh-9434-g336"
}
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"cwe": {
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"title": "Vulnerability description"
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"text": "vim: Vim: Denial of service and information disclosure via crafted swap file",
"title": "Vulnerability summary"
},
{
"category": "other",
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"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
{
"category": "external",
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"title": "vim: Vim: Denial of service and information disclosure via crafted swap file"
},
{
"acknowledgments": [
{
"names": [
"Pavel Kohout"
],
"organization": "Aisle Research"
}
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"title": "Vulnerability description"
},
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"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This IMPORTANT vulnerability in the NGINX ngx_http_mp4_module is due to improper handling of specially crafted MP4 files. A local authenticated attacker could exploit this flaw by providing a malicious MP4 file, leading to a denial of service or potentially arbitrary code execution. Red Hat products utilizing NGINX with the ngx_http_mp4_module enabled are affected if untrusted MP4 files are processed.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32647"
},
{
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"summary": "https://my.f5.com/manage/s/article/K000160366",
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},
{
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"threats": [
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"details": "Important"
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"title": "nginx: NGINX: Denial of Service or Code Execution via specially crafted MP4 files"
},
{
"cve": "CVE-2026-33412",
"cwe": {
"id": "CWE-78",
"name": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)"
},
"discovery_date": "2026-03-24T20:02:21.511965+00:00",
"ids": [
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}
],
"notes": [
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"text": "A flaw was found in Vim. By including a newline character in a pattern passed to Vim\u0027s glob() function, an attacker may be able to execute arbitrary shell commands. This command injection vulnerability allows for arbitrary code execution, depending on the user\u0027s shell settings.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "vim: Vim: Arbitrary code execution via command injection in glob() function",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"summary": "https://github.com/vim/vim/commit/645ed6597d1ea896c712cd7ddbb6edee79577e9a",
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"category": "external",
"summary": "https://github.com/vim/vim/security/advisories/GHSA-w5jw-f54h-x46c",
"url": "https://github.com/vim/vim/security/advisories/GHSA-w5jw-f54h-x46c"
}
],
"release_date": "2026-03-24T19:43:07.219000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-04-23T06:06:23+00:00",
"details": "The container images provided by this release, apart from the installer, should be deployed using rhui-installer utility.\nSee the official documentation for more details.",
"product_ids": [
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/cds-rhel9@sha256:8ac1507077086484155f94d2289df0f1d22bfe8f5f15589d6b354f11fe21d930_amd64",
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/haproxy-rhel9@sha256:8e13332d210961a93746eb0bd3761fa220dc710aada98b121320184aef2e5709_amd64",
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/installer-rhel9@sha256:8fbf461b33717d3463e4f802b1a257b7e43d60c3e9568f710df83db36a04a4fe_amd64",
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/rhua-rhel9@sha256:7eae5b16539484129c6ce169b41a3e1da7d7dd1296d2677acf7e9c3d1bce00ed_amd64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:10065"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/cds-rhel9@sha256:8ac1507077086484155f94d2289df0f1d22bfe8f5f15589d6b354f11fe21d930_amd64",
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/haproxy-rhel9@sha256:8e13332d210961a93746eb0bd3761fa220dc710aada98b121320184aef2e5709_amd64",
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/installer-rhel9@sha256:8fbf461b33717d3463e4f802b1a257b7e43d60c3e9568f710df83db36a04a4fe_amd64",
"Red Hat Update Infrastructure 5:registry.redhat.io/rhui5/rhua-rhel9@sha256:7eae5b16539484129c6ce169b41a3e1da7d7dd1296d2677acf7e9c3d1bce00ed_amd64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "vim: Vim: Arbitrary code execution via command injection in glob() function"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.