CVE-2026-4878

Red Hat Security Advisory: Red Hat AI Inference Server 3.3.5 (ROCm)

Description

A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the `cap_set_file()` function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation.

Metrics

Severity
high
no public PoC known
7.0
Source: nvd-v3
10.7 %
Elevated — this CVE ranks above at least 10% of all CVEs scored today.
0.2 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-06-25 19:30 UTC
CWE-367

Weakness classes (CWE)

  • CWE-367Base

    Time-of-check Time-of-use (TOCTOU) Race Condition

    The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

    cwe.mitre.org →

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. CVE Modified2026-09-09 13:20 UTC· 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/4xxx/CVE-2026-4878.json">CVE-2026-4878</a>
  2. CVE Modified2026-09-08 16:18 UTC· secalert@redhat.com
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/4xxx/CVE-2026-4878.json">CVE-2026-4878</a>
  3. CVE Modified2026-09-08 14:17 UTC· secalert@redhat.com
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/4xxx/CVE-2026-4878.json">CVE-2026-4878</a>
  4. CVE Modified2026-09-07 21:17 UTC· secalert@redhat.com
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/4xxx/CVE-2026-4878.json">CVE-2026-4878</a>
  5. CVE Modified2026-09-07 13:20 UTC· 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
    • Affected: Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/4xxx/CVE-2026-4878.json">CVE-2026-4878</a>

Affected operating systems

  • linux

    debian / debian_linux11.0

  • linux

    redhat / enterprise_linux10.0

  • linux

    redhat / enterprise_linux6.0

  • linux

    redhat / enterprise_linux7.0

  • linux

    redhat / enterprise_linux8.0

  • linux

    redhat / enterprise_linux9.0

  • linux

    redhat / enterprise_linux_ai3.0

  • linux

    ubuntu / jqbionic

  • linux

    ubuntu / jqfocal

  • linux

    ubuntu / popplerjammy

  • linux

    ubuntu / popplernoble

  • linux

    ubuntu / popplerquesting

  • linux

    ubuntu / popplerresolute

  • other

    siemens / sinec_os

Affected products

Products and version ranges extracted from the vendor/CERT advisory. A range like „<4.14.6“ implies the update recommendation „upgrade to 4.14.6 or later“.

  • bitnami

    python-min3.11.0

  • bitnami

    python-min3.12.0

  • bitnami

    python-min3.13.0

  • bitnami

    python-min3.14.0

  • cryptography.io

    cryptography45.0.0 – 46.0.7

  • encode

    starlette0.8.3 – 1.0.1

  • encode

    starlette1.1.0

  • IBM

    QRadar SIEM<7.5.0 UP15 IF06

  • jqlang

    jq2026-04-12

  • libcap_project

    libcap

  • libsndfile_project

    libsndfile

  • libtiff

    libtiff

  • openbsd

    openssh10.3

  • openexr

    openexr3.1.0 – 3.2.7

  • openexr

    openexr3.3.0 – 3.3.9

  • openexr

    openexr3.4.0 – 3.4.9

  • pyasn1

    pyasn10.6.2

  • pyjwt_project

    pyjwt2.13.0

  • pypi

    vllm0.0.1

  • pypi

    vllm0.1.0

  • pypi

    vllm0.10.0

  • pypi

    vllm0.10.1

  • pypi

    vllm0.10.1.1

  • pypi

    vllm0.10.2

References & sources

Linked CVEs

IDCVE-2026-4878