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CVE-2024-50306

Apache Traffic Server: Server process can fail to drop privilege

9.1 CriticalFix available

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
High

Exploit likelihood

1.57%Up 1.5 points since Nov 15, 2024
90%50%10%1%

What each source reports

CVE List Score used 9.1

Apache Traffic Server: Server process can fail to drop privilege

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
CVE-2024-50306
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness
CWE-252
Updated
2026-11-02
EUVDEUVD-2024-44806 9.1

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
EUVD-2024-44806
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-6j2p-q7p9-hmxw 9.1

Unchecked return value can allow Apache Traffic Server to retain privileges on startup. This...

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
GHSA-6j2p-q7p9-hmxw
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness
CWE-252
Updated
2026-11-02
NVD 9.1

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
CVE-2024-50306
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness
CWE-252
Updated
2026-11-02
OSVALPINE-CVE-2024-50306 9.1

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
ALPINE-CVE-2024-50306
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-03
OSV 9.1

Apache Traffic Server: Server process can fail to drop privilege

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
CVE-2024-50306
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness
CWE-252
Updated
2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2024-50306 9.1

Unchecked return value can allow Apache Traffic Server to retain privileges on startup. This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1. Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
DEBIAN-CVE-2024-50306
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
OSVOESA-2024-2470 9.1

trafficserver security update

Apache Traffic Server is an OpenSource HTTP / HTTPS / HTTP/2 / QUIC reverse, forward and transparent proxy and cache.

Security Fix(es):

Improper Input Validation vulnerability in Apache Traffic Server. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.5. Users are recommended to upgrade to version 9.2.6, which fixes the issue, or 10.0.2, which does not have the issue.(CVE-2024-38479)

Valid Host header field can cause Apache Traffic Server to crash on some platforms. This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5. Users are recommended to upgrade to version 9.2.6, which fixes the issue, or 10.0.2, which does not have the issue.(CVE-2024-50305)

Unchecked return value can allow Apache Traffic Server to retain privileges on startup. This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1. Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.(CVE-2024-50306)

Record
OESA-2024-2470
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-1197 9.1

trafficserver security update

Apache Traffic Server is an OpenSource HTTP / HTTPS / HTTP/2 / QUIC reverse, forward and transparent proxy and cache.

Security Fix(es):

Unchecked return value can allow Apache Traffic Server to retain privileges on startup.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1.

Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.(CVE-2024-50306)

Improper Access Control vulnerability in Apache Traffic Server.

This issue affects Apache Traffic Server: from 9.2.0 through 9.2.8, from 10.0.0 through 10.0.3.

Users are recommended to upgrade to version 9.2.9 or 10.0.4, which fixes the issue.(CVE-2024-56195)

Record
OESA-2026-1197
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2024-50306 9.1

Unchecked return value can allow Apache Traffic Server to retain privileges on startup. This issue affects Apache Traffic Server: from 9.2.0 through 9.2.5, from 10.0.0 through 10.0.1. Users are recommended to upgrade to version 9.2.6 or 10.0.2, which fixes the issue.

Record
UBUNTU-CVE-2024-50306
CVSS 3.1
9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
trafficserver9
Alpine:v3.21
 before 9.2.6-r0
9.2.6-r0
trafficserver9
Alpine:v3.22
 before 9.2.6-r0
9.2.6-r0
trafficserver9
Alpine:v3.23
 before 9.2.6-r0
9.2.6-r0
trafficserver9
Alpine:v3.24
 before 9.2.6-r0
9.2.6-r0
trafficserver
Debian:12
 before 9.2.5+ds-0+deb12u2, plus listed versions
9.2.0+ds-29.2.0+ds-2+deb12u19.2.1+ds-19.2.2+ds-19.2.3+ds-1
Show 5 moreShow less
9.2.3+ds-1+deb12u19.2.4+ds-0+deb12u19.2.4+ds-19.2.4+ds-29.2.5+ds-0+deb12u1
9.2.5+ds-0+deb12u2
trafficserver
Debian:11
From an advisory covering 2 CVEs
 before 8.1.11+ds-0+deb11u2, plus listed versions
8.1.1+ds-1.18.1.1+ds-1.1+deb11u18.1.10+ds-1~deb11u18.1.11+ds-0+deb11u18.1.5+ds-1~deb11u1
Show 4 moreShow less
8.1.6+ds-1~deb10u18.1.6+ds-1~deb11u18.1.7+ds-1~deb11u18.1.9+ds-1~deb11u1
8.1.11+ds-0+deb11u2
trafficserver
Debian:12
From an advisory covering 6 CVEs
 before 9.2.5+ds-0+deb12u2, plus listed versions
9.2.0+ds-29.2.0+ds-2+deb12u19.2.1+ds-19.2.2+ds-19.2.3+ds-1
Show 5 moreShow less
9.2.3+ds-1+deb12u19.2.4+ds-0+deb12u19.2.4+ds-19.2.4+ds-29.2.5+ds-0+deb12u1
9.2.5+ds-0+deb12u2
trafficserver
openEuler:24.03-LTS
From an advisory covering 3 CVEs
 before 9.2.5-2.oe2403
9.2.5-2.oe2403
trafficserver
openEuler:20.03-LTS-SP4
From an advisory covering 2 CVEs
 before 9.1.4-5.oe2003sp4
9.1.4-5.oe2003sp4
trafficserver
Ubuntu:16.04:LTS
 All versions, plus listed versions
5.3.0-2ubuntu15.3.0-2ubuntu2
 None known
Show 5 moreShow less
Affected packages
PackageAffectedFixed
trafficserver
Ubuntu:18.04:LTS
 All versions, plus listed versions
7.0.0-57.1.2+ds-27.1.2+ds-2build17.1.2+ds-3
 None known
trafficserver
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
8.0.5+ds-18.0.5+ds-28.0.5+ds-2build18.0.5+ds-2ubuntu18.0.5+ds-38.0.5+ds-3ubuntu0.1~esm1
 None known
trafficserver
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
8.1.1+ds-1.19.1.1+ds-2build19.1.1+ds-2ubuntu0.1~esm19.1.1+ds-2ubuntu0.19.1.1+ds-2ubuntu0.1+esm1
 None known
trafficserver
Ubuntu:24.04:LTS
 All versions, plus listed versions
9.2.1+ds-1build19.2.2+ds-19.2.3+ds-19.2.3+ds-1+deb12u19.2.3+ds-1+deb12u1build19.2.3+ds-1+deb12u1build39.2.3+ds-1+deb12u1build49.2.3+ds-1+deb12u1ubuntu0.1
 None known
trafficserver
Ubuntu:25.10
 All versions, plus listed versions
9.2.5+ds-1ubuntu19.2.5+ds-1ubuntu29.2.5+ds-1ubuntu2.1
 None known

History

History
RecordedChangedSources
affected, facts
affected, aliases, referencesOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-50306 is a critical vulnerability (CVSS 9.1) in Apache Traffic Server, published November 14, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.57%, the 75th percentile. Fixed in trafficserver9 9.2.6-r0.

References

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