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CVE-2026-111253— Dnf5daemon-server: dnf5: dnf5daemon-server: missing session-owner check allows foreign d-bus callers to replace another client's resolved transaction

Quick assessment

Affected

Red Hat Red Hat Hardened Images

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在中发现了一个漏洞：动态导出的 D-Bus 会话对象上的会话方法未验证调用者是否为创建该会话的唯一发送者。本地攻击者可借此修改其他用户正在进行的包管理会话，并替换其已解析的事务计划。若会话的合法参与者随后授权执行，则 root 守护进程可能会应用由攻击者指定的包操作。

CVSS 6.6 · Medium Updated Nov 06, 2026

Possible ATT&CK Techniques 2 AI

T1055 · Process Injection T1068 · Exploitation for Privilege Escalation

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Vulnerability Information

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Vulnerability Title

Dnf5daemon-server: dnf5: dnf5daemon-server: missing session-owner check allows foreign d-bus callers to replace another client's resolved transaction

Source: CVE Program / CVE List V5

Vulnerability Description

A flaw was found in dnf5daemon-server. Session methods on dynamically exported D-Bus session objects do not verify that the caller is the unique sender that created the session. A local attacker can modify another user's live package-management session and replace its resolved transaction plan. If the legitimate session party later authorizes execution, the root daemon may apply the attacker-chosen package operations.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制缺失

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Red Hat	Red Hat Hardened Images	-	`cpe:/a:redhat:hummingbird:1`

II. Public POCs for CVE-2026-111253

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-111253

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Other References for CVE-2026-111253 (3)

https://access.redhat.com/security/cve/CVE-2026-111253 vdb-entry x_refsource_REDHAT
https://github.com/rpm-software-management/dnf5/commit/46a4a8ad8d34af91ec2add6bb29e487571ea6c85
https://bugzilla.redhat.com/show_bug.cgi?id=2553683 issue-tracking x_refsource_REDHAT

https://www.cve.org/CVERecord?id=CVE-2026-111253

Same Patch Batch · Red Hat · 2026-11-05 · 24 CVEs total

CVE-2026-117691	9.1 CRITICAL	Keycloak-services: keycloak-services: saml redirect binding signature bypass via percent-e
CVE-2026-97175	8.8 HIGH	Keycloak-services: keycloak-services: unverified idp email auto-linking enables account ta
CVE-2026-121994	8.8 HIGH	Gdb: gdb: stack buffer overflow in fetch_register_using_p via unchecked p-reply length
CVE-2026-121996	8.2 HIGH	Gdb: gdbserver: heap disclosure and wild pointer in gdb_parse_agent_expr via untrusted age
CVE-2026-92857	8.1 HIGH	Keycloak-services: keycloak-services: dcr protocol mapper config not validated, allowing i
CVE-2026-121997	8.1 HIGH	Gdb: gdbserver: heap buffer overflow in cmd_qtdpsrc via qtdpsrc declared/actual length mis
CVE-2026-114232	8.1 HIGH	Keycloak-services: keycloak-services: uma protection api resourcetype field not validated
CVE-2026-112208	8.1 HIGH	Keycloak-services: keycloak-services: account takeover via stale sso_auth note in organiza
CVE-2026-96453	8.0 HIGH	Org.keycloak/keycloak-admin-cli: keycloak-admin-cli: kcadm custom truststore accepts arbit
CVE-2026-107912	7.7 HIGH	Io.quarkus/quarkus-vertx-http: quarkus-vertx-http: authorization bypass in management inte
CVE-2026-121995	7.5 HIGH	Gdb: gdb: stack buffer overflow in parse_tracepoint_definition via stale rs->buf tail
CVE-2026-107123	7.5 HIGH	Keycloak-services: keycloak-services: unauthenticated cpu denial of service via saml xml d
CVE-2026-103112	7.5 HIGH	Keycloak-services: keycloak-services: account takeover via authentication race using reset
CVE-2026-107602	7.5 HIGH	Keycloak-services: keycloak-services: unauthenticated cpu exhaustion via saml 1.1 keyinfo
CVE-2026-110931	7.5 HIGH	Keycloak-services: keycloak-services: unauthenticated jvm termination via saml 1.1 authori
CVE-2026-110932	7.5 HIGH	Keycloak-services: keycloak-services: unauthenticated persistent disk exhaustion via theme
CVE-2026-82965	7.5 HIGH	Keycloak-services: keycloak-services: unauthenticated denial of service via saml soap endp
CVE-2026-92855	7.4 HIGH	Keycloak-services: keycloak-services: saml broker accepts holder-of-key assertions without
CVE-2026-93998	7.4 HIGH	Keycloak-core: keycloak-core: saml adapter does not bind signed assertions to the configur
CVE-2026-97847	7.1 HIGH	Keycloak-services: keycloak-services: client manager can substitute sessionless token prin

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Red Hat Hardened Images

Same vendor: Red Hat

Same weakness: CWE-862