CVE-2026-27651VulnerabilityPublished 25 May 2026Updated 10 Nov 2026

SUSE · Security update for nginx

Affects SUSESource GCVE Database

Mentioned vulnerabilities

Authoritative record:CVE-2026-27651· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in Red Hat package updates : patch the Red Hat redhat/nginx package soon.

Data as of 10 Nov 2026, 20:06 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 1.29.7, 1.28.3, R36 P3 +3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Mar 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 10 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade NGINX Open Source to 1.29.7 or 1.28.3; NGINX Plus to R36 P3, R35 P2 or R32 P5; the Red Hat redhat/nginx package to 1.29.0.

Affected software

Product	Affected	Fixed in
F5NGINX Open Source	Affected >=1.29.0 <1.29.7	Fixed in 1.29.7
F5NGINX Open Source	Affected >=0.5.15 <1.28.3	Fixed in 1.28.3
F5NGINX Plus	Affected >=R34 >=R33 =R36 =R35 =R32	Fixed in R36 P3 R35 P2 R32 P5
Red Hatredhat/nginx`pkg:rpm/redhat/nginx`Other threats	Affected <1.29.0	Fixed in 1.29.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

This update for nginx fixes the following issues - CVE-2026-27651: denial of service via undisclosed requests when the `ngx_mail_auth_http_module` is enabled (bsc#1260415). - CVE-2026-32647: NGINX worker memory over-read or over-write via a specially crafted MP4 file (bsc#1260420). - CVE-2026-40701: heap use-after-free in the worker process when the `ssl_verify_client` and the `ssl_ocsp` directives are set due to issue in the `ngx_http_ssl_module` module (bsc#1265229). - CVE-2026-42934: heap buffer overread in the worker process due to issue in the `ngx_http_charset_module` module (bsc#1265231). - CVE-2026-42945: heap buffer overflow via crafted HTTP requests due to issue in `ngx_http_rewrite_module` (bsc#1265232). - CVE-2026-42946: excessive memory allocation and data overread due to issue in the `ngx_http_scgi_module` and `ngx_http_uwsgi_module` modules (bsc#1265233).

References

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