Bytes is a utility library for working with bytes. From version 1.2.1 to before 1.11.1, Bytes is vulnerable to integer overflow in BytesMut::reserve. In the unique reclaim path of BytesMut::reserve, if the condition "v_capacity >= new_cap + offset" uses an unchecked addition. When new_cap + offset overflows usize in release builds, this condition may incorrectly pass, causing self.cap to be set to a value that exceeds the actual allocated capacity. Subsequent APIs such as spare_capacity_mut() then trust this corrupted cap value and may create out-of-bounds slices, leading to UB. This behavior is observable in release builds (integer overflow wraps), whereas debug builds panic due to overflow checks. This issue has been patched in version 1.11.1.

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21428-1 advisory.

    This update for nm-configurator fixes the following issue

    Update to version 0.3.5.

    Security issue fixed:

    - CVE-2026-25541: bytes: integer overflow in `BytesMut:reserve` can lead to undefined behavior and crashes       (bsc#1271392).

    Other updates and bugfixes:

    - Version 0.3.5:
      * Bump `version` to v0.3.5 (#206)
      * Bump `clap` 4.5.53 (#205)
      * Bump `actions/checkout` to 6 (#204)
      * Bump `nmstate` to 2.2.55 (#203)
      * Fix for issue #198 VLAN interface renaming (#201)
      * Bump `serde` to 1.0.228 (#196)
      * Bump `anyhow` to 1.0.100 (#194)

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

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

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21386-1 advisory.

    Update to version 5.10.0.git73.b97f772.

    Security issues fixed:

    - CVE-2026-41676: openssl: `Deriver:derive` and `PkeyCtxRef:derive` can overflow short buffers on OpenSSL     1.1.1       (bsc#1270175).
    - CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length       (bsc#1270555).
    - CVE-2026-41678: openssl: incorrect bounds assertion in `aes::unwrap_key()` can lead to OOB write     (bsc#1270651).
    - CVE-2026-41681: openssl: `MdCtxRef::digest_final()` writes past caller buffer with no length check     (bsc#1270787).
    - CVE-2026-41898: openssl: unchecked callback-returned length in PSK and cookie generate trampolines can     leak adjacent       memory to network peers (bsc#1270817).
    - CVE-2026-42327: openssl: undefined behavior in `X509Ref::ocsp_responders` when processing certificates     with non-UTF-8       OCSP URLs (bsc#1270483).
    - CVE-2026-44662: openssl: heap buffer overflow when encrypting with AES key-wrap-with-padding     (bsc#1270886).
    - CVE-2026-45784: openssl: out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD     ciphers       (bsc#1270949).
    - CVE-2026-25541: bytes: integer overflow in `BytesMut:reserve` can lead to undefined behavior and crashes       (bsc#1271348).

    Other updates and bugfixes:

    - Version 5.10.0.git73.b97f772:
      * build(deps): bump anyhow from 1.0.99 to 1.0.103         https://github.com/coreos/afterburn/pull/1284
      * build(deps): bump libflate from 2.1.0 to 2.2.2         https://github.com/coreos/afterburn/pull/1283
      * build(deps): bump openssl from 0.10.79 to 0.10.80         https://github.com/coreos/afterburn/pull/1277
    - Version 5.10.0.git70.9cc2a7b:
      * build(deps): bump openssl from 0.10.78 to 0.10.79
      * providers/hetzner: Add the HETZNER_PUBLIC_IPV6 attribute
      * providers/hetzner: Add support for network configuration
      * build(deps): bump rustls-webpki from 0.103.10 to 0.103.13
      * build(deps): bump openssl from 0.10.73 to 0.10.78
      * docs: Add AGENTS.md and CLAUDE.md for AI coding assistants
      * build(deps): bump rand from 0.9.2 to 0.9.4
      * opencode: add skills for provider scaffolding and release automation
      * ibmcloud-classic: Add missing network_id to fixture
      * kubevirt: Support static gateway and DNS with DHCP
      * build(deps): bump rustls-webpki from 0.103.6 to 0.103.10
      * fix(proxmoxve): Define DNS entries for every interface
      * Makefile: download `90-afterburn-authorized-keys-file.conf` for rpm building
      * Sync repo templates 
      * build(deps): bump bytes from 1.10.1 to 1.11.1
      * util/dhcp: Fix clippy lints
      * build(deps): bump actions/checkout from 4 to 6
      * build(deps): bump actions/upload-artifact from 4 to 5
      * kubevirt: modprobe for virtio_blk; remove dracut preload
      * kubevirt: Add NoCloud network configuration support
      * kubevirt: Support config drive network data
      * kubevirt: Refactor the provider to follow the proxmoxve structure
      * dracut: Add virtio_blk module preload to afterburn-network-kargs service
      * docs: Add release notes
      * cargo: Afterburn release 5.10.0
    - Version 5.10.0:
      * docs/release-notes: update for release 5.10.0
      * cargo: update dependencies
      * microsoft/azure: Add XML attribute alias for serde-xml-rs Fedora compat
      * docs/release-notes: Add entry for Azure SharedConfig XML parsing fix
      * microsoft/azure: Fix SharedConfig parsing of XML attributes
      * microsoft/azure: Mock goalstate.SharedConfig output in tests
      * providers/azure: switch SSH key retrieval from certs endpoint to IMDS
      * build(deps): bump the build group with 8 updates
      * build(deps): bump slab from 0.4.10 to 0.4.11
      * build(deps): bump actions/checkout from 4 to 5
      * upcloud: implement UpCloud provider
      * build(deps): bump the build group with 4 updates

Tenable has extracted the preceding description block directly from the SUSE 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.

  - Bytes is a utility library for working with bytes. From version 1.2.1 to before 1.11.1, Bytes is     vulnerable to integer overflow in BytesMut::reserve. In the unique reclaim path of BytesMut::reserve, if     the condition v_capacity >= new_cap + offset uses an unchecked addition. When new_cap + offset overflows     usize in release builds, this condition may incorrectly pass, causing self.cap to be set to a value that     exceeds the actual allocated capacity. Subsequent APIs such as spare_capacity_mut() then trust this     corrupted cap value and may create out-of-bounds slices, leading to UB. This behavior is observable in     release builds (integer overflow wraps), whereas debug builds panic due to overflow checks. This issue has     been patched in version 1.11.1. (CVE-2026-25541)

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

ID	Name	Product	Family	Severity
329721	openSUSE 16 Security Update : nm-configurator (openSUSE-SU-2026:21428-1)	Nessus	SuSE Local Security Checks	medium
329301	openSUSE 16 Security Update : afterburn (openSUSE-SU-2026:21386-1)	Nessus	SuSE Local Security Checks	critical
297794	Linux Distros Unpatched Vulnerability : CVE-2026-25541	Nessus	Misc.	medium

Detections

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CVE-2026-25541

medium

Tenable Plugins

medium

critical

medium