Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且廠商未提供可用的修補程式。

  - 在 rpm 中發現堆積型緩衝區溢位缺陷。在宣告的 RPMTAG_LONGFILESIZES 值為 0xFFFFFFFFFFFFFFFF 的不受信任 RPM 套件中剖析符號連結項目，會導致 iterReadArchiveNext（） 中的整數溢位，將緩衝區分配縮小到一個位元組，之後有效負載的獨立控制 cpio 檔案大小欄位用於寫入攻擊者控制的資料超過該配置結束。這可以透過不受信任套件上的 rpm2cpio、rpm2archive 和 rpm -qlvp 來實現。
    (CVE-2026-95520)

請注意，Nessus 依賴供應商報告的套件存在。

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 在 rpm 中发现一个基于堆的缓冲区溢出缺陷。解析声明的 RPMTAG_LONGFILESIZES值0xFFFFFFFFFFFFFFFF的不受信任的 RPM 程序包中的符号链接条目会导致 iterReadArchiveNext（） 中发生整数溢出，将缓冲区分配缩小到一个字节，之后负载独立控制的 cpio 文件大小字段被用于在该分配末尾后写入攻击者控制的数据。可通过不受信任程序包上的 rpm2cpio、rpm2archive 和 rpm -qlvp 达到此目的。
    (CVE-2026-95520)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - rpm にヒープベースのバッファオーバーフローの欠陥が見つかりました。信頼できない RPM パッケージ内のシンボリックリンクエントリを解析すると、宣言された RPMTAG_LONGFILESIZES 値が0xFFFFFFFFFFFFFFFFである、iterReadArchiveNext() で整数オーバーフローが発生し、バッファ割り当てが 1 バイトに縮小されます。その後、ペイロードの独立して制御される cpio ファイルサイズフィールドを使用して、攻撃者が制御するデータを、その割り当ての終端を超えて書き込まれます。これは、信頼できないパッケージのrpm2cpio、rpm2archive、rpm -qlvpを介してアクセスできます。
    (CVE-2026-95520)

Nessus は、ベンダーによって報告されたパッケージの存在に依存していることに注意してください。

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1794008871 advisory.

  - A heap-based buffer overflow flaw was found in rpm. RPMTAG_FILESIGNATURES in a crafted, unsigned RPM     package's main header is declared with the wrong header type, causing hex2binv() to allocate a one-byte     buffer and then write the tag's attacker-controlled, hex-decoded content  of attacker-chosen length     past the end of that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an     untrusted package. (CVE-2026-103242)

  - A vulnerability was found in RPM's rpmbuild tarball processing. When processing a crafted source archive,     the getTarSpec() function in tools/rpmbuild.cc passes an attacker-controlled tar archive member name to     rpmExpand() as part of a %{basename:...} macro expression. A specially crafted .spec member name can     therefore inject RPM macros, including Lua expressions, resulting in arbitrary code execution with the     privileges of the user running rpmbuild. This can be exploited when a victim or automated build system     processes an attacker-controlled source tarball using rpmbuild tarball mode (such as -ts, -ta, or -tb).
    (CVE-2026-78367)

  - A flaw was found in rpm. An attacker can supply a crafted manifest file that, when processed by a user or     automation using `rpm -q -p` or similar manifest-processing flows, leads to arbitrary code execution. This     occurs because manifest entries are unexpectedly macro-expanded before being opened, allowing embedded     shell commands to run with the privileges of the `rpm` process. Successful exploitation can lead to a full     compromise of confidentiality, integrity, and availability for the affected account. (CVE-2026-95519)

  - A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package     whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in     iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's     independently-controlled cpio filesize field is used to write attacker-controlled data past the end of     that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.
    (CVE-2026-95520)

  - A flaw was found in rpm. An attacker can exploit a command injection vulnerability by influencing the path     or filename of a tarball processed by `rpmbuild -t*` to include shell metacharacters. This is particularly     relevant in automated build or continuous integration (CI) workflows that ingest externally supplied     artifact names. Successful exploitation allows for arbitrary command execution with the privileges of the     build user, which could lead to information disclosure or disruption of the build environment.
    (CVE-2026-84837)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of rpm installed on the remote host is prior to 4.14.3-4. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2MOCK2-2026-006 advisory.

    A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package     whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in     iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's     independently-controlled cpio filesize field is used to write attacker-controlled data past the end of     that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an  untrusted package.
    (CVE-2026-95520)

    A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file     basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via     popen() while relocating the source file list. This allows arbitrary command execution as the invoking     (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted     .src.rpm. (CVE-2026-95521)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package     whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in     iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's     independently-controlled cpio filesize field is used to write attacker-controlled data past the end of     that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an untrusted package.
    (CVE-2026-95520)

Note that Nessus relies on the presence of the package as reported by the vendor.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3430 advisory.

    A heap-based buffer overflow flaw was found in rpm. Parsing a symlink entry in an untrusted RPM package     whose declared RPMTAG_LONGFILESIZES value is 0xFFFFFFFFFFFFFFFF causes an integer overflow in     iterReadArchiveNext() that shrinks a buffer allocation to one byte, after which the payload's     independently-controlled cpio filesize field is used to write attacker-controlled data past the end of     that allocation. This is reachable via rpm2cpio, rpm2archive, and rpm -qlvp on an  untrusted package.
    (CVE-2026-95520)

    A command injection flaw was found in rpm. Installing or rebuilding a source RPM whose source or spec file     basenames contain a %() macro construct causes rpm to execute an attacker-controlled shell command via     popen() while relocating the source file list. This allows arbitrary command execution as the invoking     (typically non-root) user, simply by installing, rebuilding, or otherwise processing an untrusted     .src.rpm. (CVE-2026-95521)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名稱	產品	系列	已發布	已更新	嚴重性
351185	Linux Distros 未修補弱點：CVE-2026-95520	Nessus	Misc.	2026/9/29	2026/11/6	high
351185	Linux Distros 未修补的漏洞：CVE-2026-95520	Nessus	Misc.	2026/9/29	2026/11/6	high
351185	Linux Distros のパッチ未適用の脆弱性: CVE-2026-95520	Nessus	Misc.	2026/9/29	2026/11/6	high
377128	AlmaLinux 9.2 [TuxCare] Security Update: python3-rpm / rpm / rpm-apidocs / rpm-build / rpm-build-libs / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1794008871)	Nessus	Alma Linux Local Security Checks	2026/11/6	2026/11/6	high
379827	Amazon Linux 2 : rpm (ALASMOCK2-2026-006)	Nessus	Amazon Linux Local Security Checks	2026/11/12	2026/11/12	high
351185	Linux Distros Unpatched Vulnerability : CVE-2026-95520	Nessus	Misc.	2026/9/29	2026/11/6	high
379860	Amazon Linux 2023 : python3-rpm, rpm, rpm-apidocs (ALAS2023-2026-3430)	Nessus	Amazon Linux Local Security Checks	2026/11/12	2026/11/12	high

偵測

搜尋 Plugin

high

high

high

high

high

high

high