OESA-2026-2405

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-2405

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-2405.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-2405

Upstream

CVE-2026-42945

Published

2026-05-22T13:18:53Z

Modified

2026-05-22T13:30:19.629089869Z

Summary

nginx security update

Details

NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server.

Security Fix(es):

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttprewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible Regular Expression (PCRE) capture (for example, $1, $2) with a replacement string that includes a question mark (?). An unauthenticated attacker along with conditions beyond its control can exploit this vulnerability by sending crafted HTTP requests. This may cause a heap buffer overflow in the NGINX worker process leading to a restart. Additionally, for systems with Address Space Layout Randomization (ASLR ) disabled, code execution is possible. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.(CVE-2026-42945)

Database specific

{
    "severity": "High"
}

References

Affected packages

openEuler:20.03-LTS-SP4 / nginx

Package

Name: nginx
Purl: pkg:rpm/openEuler/nginx&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.21.5-11.oe2003sp4

Ecosystem specific

{
    "src": [
        "nginx-1.21.5-11.oe2003sp4.src.rpm"
    ],
    "x86_64": [
        "nginx-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-debuginfo-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-debugsource-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-mod-devel-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-mod-http-image-filter-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-mod-http-perl-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-mod-http-xslt-filter-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-mod-mail-1.21.5-11.oe2003sp4.x86_64.rpm",
        "nginx-mod-stream-1.21.5-11.oe2003sp4.x86_64.rpm"
    ],
    "aarch64": [
        "nginx-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-debuginfo-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-debugsource-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-mod-devel-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-mod-http-image-filter-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-mod-http-perl-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-mod-http-xslt-filter-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-mod-mail-1.21.5-11.oe2003sp4.aarch64.rpm",
        "nginx-mod-stream-1.21.5-11.oe2003sp4.aarch64.rpm"
    ],
    "noarch": [
        "nginx-all-modules-1.21.5-11.oe2003sp4.noarch.rpm",
        "nginx-filesystem-1.21.5-11.oe2003sp4.noarch.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-2405.json"