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OESA-2026-1929 (CVE-2026-4878)
Vulnerability from osv_openeuler – Published: 2026-04-17 11:10 – Updated: 2026-08-06 11:10 – Source website
VLAI
Summary
libcap security update
Details
This is a library for getting and setting POSIX.1e (formerly POSIX 6) draft 15 capabilities.
Security Fix(es):
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.(CVE-2026-4878)
Severity
6.7 (Medium)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"libcap-2.61-11.oe2203sp4.aarch64.rpm",
"libcap-debuginfo-2.61-11.oe2203sp4.aarch64.rpm",
"libcap-debugsource-2.61-11.oe2203sp4.aarch64.rpm",
"libcap-devel-2.61-11.oe2203sp4.aarch64.rpm"
],
"noarch": [
"libcap-help-2.61-11.oe2203sp4.noarch.rpm"
],
"src": [
"libcap-2.61-11.oe2203sp4.src.rpm"
],
"x86_64": [
"libcap-2.61-11.oe2203sp4.x86_64.rpm",
"libcap-debuginfo-2.61-11.oe2203sp4.x86_64.rpm",
"libcap-debugsource-2.61-11.oe2203sp4.x86_64.rpm",
"libcap-devel-2.61-11.oe2203sp4.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP4",
"name": "libcap",
"purl": "pkg:rpm/openEuler/libcap\u0026distro=openEuler-22.03-LTS-SP4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.61-11.oe2203sp4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"libcap-2.69-7.oe2403.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403.aarch64.rpm",
"libcap-devel-2.69-7.oe2403.aarch64.rpm",
"libcap-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-devel-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-devel-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-2.69-7.oe2403sp3.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp3.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403sp3.aarch64.rpm",
"libcap-devel-2.69-7.oe2403sp3.aarch64.rpm"
],
"noarch": [
"libcap-help-2.69-7.oe2403.noarch.rpm",
"libcap-help-2.69-7.oe2403sp1.noarch.rpm",
"libcap-help-2.69-7.oe2403sp2.noarch.rpm",
"libcap-help-2.69-7.oe2403sp3.noarch.rpm"
],
"src": [
"libcap-2.69-7.oe2403.src.rpm",
"libcap-2.69-7.oe2403sp1.src.rpm",
"libcap-2.69-7.oe2403sp2.src.rpm",
"libcap-2.69-7.oe2403sp3.src.rpm"
],
"x86_64": [
"libcap-2.69-7.oe2403.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403.x86_64.rpm",
"libcap-devel-2.69-7.oe2403.x86_64.rpm",
"libcap-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-devel-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-devel-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-2.69-7.oe2403sp3.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp3.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403sp3.x86_64.rpm",
"libcap-devel-2.69-7.oe2403sp3.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS",
"name": "libcap",
"purl": "pkg:rpm/openEuler/libcap\u0026distro=openEuler-24.03-LTS"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.69-7.oe2403sp3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"libcap-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403sp1.aarch64.rpm",
"libcap-devel-2.69-7.oe2403sp1.aarch64.rpm"
],
"noarch": [
"libcap-help-2.69-7.oe2403sp1.noarch.rpm"
],
"src": [
"libcap-2.69-7.oe2403sp1.src.rpm"
],
"x86_64": [
"libcap-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403sp1.x86_64.rpm",
"libcap-devel-2.69-7.oe2403sp1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS-SP1",
"name": "libcap",
"purl": "pkg:rpm/openEuler/libcap\u0026distro=openEuler-24.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.69-7.oe2403sp1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"libcap-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403sp2.aarch64.rpm",
"libcap-devel-2.69-7.oe2403sp2.aarch64.rpm"
],
"noarch": [
"libcap-help-2.69-7.oe2403sp2.noarch.rpm"
],
"src": [
"libcap-2.69-7.oe2403sp2.src.rpm"
],
"x86_64": [
"libcap-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403sp2.x86_64.rpm",
"libcap-devel-2.69-7.oe2403sp2.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS-SP2",
"name": "libcap",
"purl": "pkg:rpm/openEuler/libcap\u0026distro=openEuler-24.03-LTS-SP2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.69-7.oe2403sp2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"libcap-2.69-7.oe2403sp3.aarch64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp3.aarch64.rpm",
"libcap-debugsource-2.69-7.oe2403sp3.aarch64.rpm",
"libcap-devel-2.69-7.oe2403sp3.aarch64.rpm"
],
"noarch": [
"libcap-help-2.69-7.oe2403sp3.noarch.rpm"
],
"src": [
"libcap-2.69-7.oe2403sp3.src.rpm"
],
"x86_64": [
"libcap-2.69-7.oe2403sp3.x86_64.rpm",
"libcap-debuginfo-2.69-7.oe2403sp3.x86_64.rpm",
"libcap-debugsource-2.69-7.oe2403sp3.x86_64.rpm",
"libcap-devel-2.69-7.oe2403sp3.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:24.03-LTS-SP3",
"name": "libcap",
"purl": "pkg:rpm/openEuler/libcap\u0026distro=openEuler-24.03-LTS-SP3"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.69-7.oe2403sp3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"libcap-2.32-10.oe2003sp4.aarch64.rpm",
"libcap-debuginfo-2.32-10.oe2003sp4.aarch64.rpm",
"libcap-debugsource-2.32-10.oe2003sp4.aarch64.rpm",
"libcap-devel-2.32-10.oe2003sp4.aarch64.rpm"
],
"noarch": [
"libcap-help-2.32-10.oe2003sp4.noarch.rpm"
],
"src": [
"libcap-2.32-10.oe2003sp4.src.rpm"
],
"x86_64": [
"libcap-2.32-10.oe2003sp4.x86_64.rpm",
"libcap-debuginfo-2.32-10.oe2003sp4.x86_64.rpm",
"libcap-debugsource-2.32-10.oe2003sp4.x86_64.rpm",
"libcap-devel-2.32-10.oe2003sp4.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP4",
"name": "libcap",
"purl": "pkg:rpm/openEuler/libcap\u0026distro=openEuler-20.03-LTS-SP4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.32-10.oe2003sp4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "This is a library for getting and setting POSIX.1e (formerly POSIX 6) draft 15 capabilities.\r\n\r\nSecurity Fix(es):\n\nA 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.(CVE-2026-4878)",
"id": "OESA-2026-1929",
"modified": "2026-08-06T11:10:56Z",
"published": "2026-04-17T11:10:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1929"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4878"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "libcap security update",
"upstream": [
"CVE-2026-4878"
]
}
CVE-2026-4878 (GCVE-0-2026-4878)
Vulnerability from cvelistv5 – Published: 2026-04-09 14:49 – Updated: 2026-09-09 12:04
VLAI
EPSS
VEX
Title
Libcap: libcap: privilege escalation via toctou race condition in cap_set_file()
Summary
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.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-09 00:00 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
42 references
Impacted products
60 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.69-7.el10_1.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.69-7.el10_2.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:2.69-7.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.48-6.el8_10.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:2.48-4.el8_6.1 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6::baseos cpe:/o:redhat:rhel_eus_long_life:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On |
Unaffected:
0:2.48-4.el8_6.1 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6::baseos cpe:/o:redhat:rhel_eus_long_life:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:2.48-5.el8_8.1 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8::baseos cpe:/o:redhat:rhel_tus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:2.48-5.el8_8.1 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8::baseos cpe:/o:redhat:rhel_tus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.48-10.el9_7.1 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.48-10.el9_8.1 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:2.48-9.el9_2.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::appstream cpe:/o:redhat:rhel_e4s:9.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:2.48-9.el9_4.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4::appstream cpe:/o:redhat:rhel_eus:9.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:2.48-9.el9_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6::appstream cpe:/o:redhat:rhel_eus:9.6::baseos |
|
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
Unaffected:
412.86.202608241157-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
413.92.202606160406-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
414.92.202606231112-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
415.92.202606030318-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
416.94.202606051757-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.17 |
Unaffected:
417.94.202606250942-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.17::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
Unaffected:
418.94.202606051320-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202606031700-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Cost Management 4 |
Unaffected:
1780946239 , < *
(rpm)
cpe:/a:redhat:cost_management:4::el9 |
|
| Red Hat | Cost Management 4 |
Unaffected:
1783539156 , < *
(rpm)
cpe:/a:redhat:cost_management:4::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1780681984 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1782352950 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1782352919 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1782353093 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1782352847 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778101579 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778156756 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1782159791 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1782166952 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
2.78-1.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1780420428 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat OpenShift distributed tracing 3.9.3 |
Unaffected:
1778056267 , < *
(rpm)
cpe:/a:redhat:openshift_distributed_tracing:3.9::el9 |
|
| Red Hat | Red Hat OpenShift distributed tracing 3.9.3 |
Unaffected:
1778056233 , < *
(rpm)
cpe:/a:redhat:openshift_distributed_tracing:3.9::el9 |
|
| Red Hat | Red Hat OpenShift distributed tracing 3.9.3 |
Unaffected:
1778056245 , < *
(rpm)
cpe:/a:redhat:openshift_distributed_tracing:3.9::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1779798159 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1779798164 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1779798165 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1779798222 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241211 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787135742 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241260 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:2.69-7.el10_1.1 , < *
(rpm)
Unaffected: 0:2.69-7.el10_2.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:2.48-6.el8_10.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:2.48-4.el8_6.1 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On |
Unaffected:
0:2.48-4.el8_6.1 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:2.48-5.el8_8.1 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:2.48-5.el8_8.1 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.48-10.el9_7.1 , < *
(rpm)
Unaffected: 0:2.48-10.el9_8.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:2.48-9.el9_2.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:2.48-9.el9_4.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:2.48-9.el9_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Cost Management 4 |
Unaffected:
1780946239 , < *
(rpm)
Unaffected: 1783539156 , < * (rpm) cpe:/a:redhat:cost_management:4::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778101579 , < *
(rpm)
Unaffected: 1782159791 , < * (rpm) cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1778156756 , < *
(rpm)
Unaffected: 1782166952 , < * (rpm) cpe:/a:redhat:discovery:2::el9 |
Date Public
2026-04-06 00:00
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"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:58981"
},
{
"name": "RHSA-2026:59831",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59831"
},
{
"name": "RHSA-2026:7473",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7473"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-4878"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2447554"
},
{
"name": "RHBZ#2451615",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451615"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-26T06:56:21.213Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-04-06T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Libcap: libcap: privilege escalation via toctou race condition in cap_set_file()",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-4878",
"datePublished": "2026-04-09T14:49:02.942Z",
"dateReserved": "2026-03-26T06:32:41.308Z",
"dateUpdated": "2026-09-09T12:04:46.988Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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