CVE-2026-28780
CVE-2026-28780: 3 tracked advisory records across Apache, NetApp, Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityUnrated
Advisory [CVE-2026-28780] Apache HTTP Server: buffer overflow in mod_proxy_ajp via ajp_msg_check_header
CVE-2026-28780Source published Source updated
Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.
- Affected products in this advisory
- Apache HTTP Server
- Source-reported affected versions
- Apache HTTP Server through 2.4.66
- Source-reported fixed versions
- 2.4.67
- Mitigation guidance
- Users are recommended to upgrade to version 2.4.67, which fixes the issue.
NetApp
1 advisory- Advisory severityCritical9.8
Critical [CVE-2026-28780] Apache HTTP Server Vulnerability in NetApp Products
NTAP-20260508-0007Source published Source updated
Multiple NetApp products incorporate Apache HTTP Server. Apache HTTP Server versions through 2.4.66 are susceptible to a vulnerability which when successfully exploited could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). NetApp states there is no workaround available at this time.
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- 2.4.66
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
Red Hat
1 advisory- Advisory severityHigh8.1
High [CVE-2026-28780] Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-based buffer overflow
CVE-2026-28780Source published
Apache HTTP Server mod_proxy_ajp: Arbitrary code execution via heap-based buffer overflow. Red Hat rates this important (CVSS 8.1). Weakness: CWE-787. Affected package(s): httpd, httpd:2.4, jbcs-httpd24-httpd. Resolved in Red Hat advisory RHSA-2026:27200 — update the affected packages (`sudo dnf update`).
- Affected products in this advisory
- JBoss Core Services for RHEL 8
- JBoss Core Services on RHEL 7
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
9 more entries in the full advisory.
- Source-reported affected versions
- httpd-0:2.4.62-13.el9_8.1
- httpd:2.4-8100020260519200905.489197e6
- jbcs-httpd24-httpd-0:2.4.62-13.el8jbcs
- httpd-0:2.4.63-13.el10_2.1
2 more entries in the full advisory.
- Source-reported fixed versions
- RHSA-2026:27200
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:27200 (`sudo dnf update` / `yum update`).
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