CVE-2026-5745— Libarchive: a null pointer dereference vulnerability exists in the acl parser of libarchive
Possible ATT&CK Techniques 2AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of ServiceAffected Version Matrix 7
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | any | affected |
| Red Hat | Red Hat Enterprise Linux 6 | any | affected |
| Red Hat | Red Hat Enterprise Linux 7 | any | affected |
| Red Hat | Red Hat Enterprise Linux 8 | any | affected |
| Red Hat | Red Hat Enterprise Linux 9 | any | affected |
| Red Hat | Red Hat Hardened Images | 3.8.7-1.hum1< * | unaffected |
| Red Hat | Red Hat OpenShift Container Platform 4 | any | affected |
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-5745
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Libarchive: a null pointer dereference vulnerability exists in the acl parser of libarchive
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in libarchive. A NULL pointer dereference vulnerability exists in the ACL parsing logic, specifically within the archive_acl_from_text_nl() function. When processing a malformed ACL string (such as a bare "d" or "default" tag without subsequent fields), the function fails to perform adequate validation before advancing the pointer. An attacker can exploit this by providing a maliciously crafted archive, causing an application utilizing the libarchive API (such as bsdtar) to crash, resulting in a Denial of Service (DoS).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
libarchive 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libarchive是libarchive开源的一款多格式存档和压缩库。 libarchive存在代码问题漏洞，该漏洞源于ACL解析逻辑存在空指针取消引用，可能导致处理恶意存档文件时应用程序崩溃和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Hardened Images | 3.8.7-1.hum1 ~ * | cpe:/a:redhat:hummingbird:1 | |
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| 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 Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | - | cpe:/a:redhat:openshift:4 |
II. Public POCs for CVE-2026-5745
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-5745
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-5745 (1)
Same Patch Batch · Red Hat · 2026-04-07 · 4 CVEs total
| CVE-2026-4631 | 9.8 CRITICAL | Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument i |
| CVE-2026-4740 | 8.2 HIGH | Rhacm: open cluster management (ocm): cross-cluster privilege escalation via improper kube |
| CVE-2025-14821 | 7.8 HIGH | Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on |
IV. Related Vulnerabilities
Same product: Red Hat Hardened Images
- CVE-2026-72693
Kbd: local privilege escalation in openvt via incorrect proc - CVE-2026-19079
Policycoreutils: policycoreutils: toctou race condition in f - CVE-2026-44605
Rpm: heap buffer overflow in ndb slot table parsing - CVE-2026-18477
Tar: tar: toctou in incremental dumpdir 'x' rename handling - CVE-2026-18508
Tar: tar: --one-top-level hardlink targets not confined to t
Same vendor: Red Hat
- CVE-2026-74247
Quay: ssrf via build archive_url in quay build api - CVE-2026-74245
Quay: unauthenticated exported logs download in quay - CVE-2026-74243
Quay: unauthenticated secscan notification endpoint in quay - CVE-2026-74244
Quay: stripe webhook accepts forged events without signature - CVE-2026-74242
Quay: repository notification uuid idor in quay api
Same weakness: CWE-476
- CVE-2026-18699
Improper Input Validation in MongoDB Query Planner Leads to - CVE-2026-65681
Windows iSCSI Target Service Denial of Service Vulnerability - CVE-2026-62702
Windows Graphics Kernel Denial of Service Vulnerability - CVE-2026-59138
Microsoft Remote Registry Service Denial of Service Vulnerab - CVE-2026-61345
Microsoft Remote Registry Service Denial of Service Vulnerab
V. Comments for CVE-2026-5745
No comments yet