HTTP and MIME header parsing can allocate large amounts of memory, even when parsing small inputs, potentially leading to a denial of service. Certain unusual patterns of input data can cause the common function used to parse HTTP and MIME headers to allocate substantially more memory than required to hold the parsed headers. An attacker can exploit this behavior to cause an HTTP server to allocate large amounts of memory from a small request, potentially leading to memory exhaustion and a denial of service. With fix, header parsing now correctly allocates only the memory required to hold parsed headers.
CVE-2023-24534
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-04-06. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 77.1%
- KEV
- Not listed
Published
April 6, 2023
Last Modified
February 12, 2025
References (12)
- security@golanghttps://go.dev/cl/481994
- security@golanghttps://go.dev/issue/58975
- security@golanghttps://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8
- security@golanghttps://pkg.go.dev/vuln/GO-2023-1704
- security@golanghttps://security.gentoo.org/glsa/202311-09
- security@golanghttps://security.netapp.com/advisory/ntap-20230526-0007/
- af854a3a-2127-422b-91ae-364da2661108https://go.dev/cl/481994
- af854a3a-2127-422b-91ae-364da2661108https://go.dev/issue/58975
- af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8
- af854a3a-2127-422b-91ae-364da2661108https://pkg.go.dev/vuln/GO-2023-1704
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202311-09
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230526-0007/
Vendor Advisories for CVE-2023-24534(20)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:2944Red Hat Product SecurityHigh
Red Hat Security Advisory: AMQ Broker 7.12.0.OPR.1.GA Container Images release and security update
- RHSA-2023:6939Red Hat Product SecurityMedium
Red Hat Security Advisory: container-tools:rhel8 security and bug fix update
- RHSA-2023:6938Red Hat Product SecurityMedium
Red Hat Security Advisory: container-tools:4.0 security and bug fix update
- RHSA-2023:6832Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.14.0 security, enhancement & bug fix update
- RHSA-2023:6346Red Hat Product SecurityMedium
Red Hat Security Advisory: toolbox security and bug fix update
- RHSA-2023:6402Red Hat Product SecurityMedium
Red Hat Security Advisory: containernetworking-plugins security and bug fix update
- RHSA-2023:6474Red Hat Product SecurityMedium
Red Hat Security Advisory: podman security, bug fix, and enhancement update
- RHSA-2023:6473Red Hat Product SecurityMedium
Red Hat Security Advisory: buildah security update
- +12 more
Patch Availability(30)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| stdlib | — | 1.20.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(16)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2023-245342025-09-04
Excessive memory allocation in net/http and net/textproto
- Red HatRHSA-2023:3167MODERATE2023-04-04
RHSA-2023:3167 — Moderate
- Red HatRHSA-2023:3318MODERATE2023-04-04
RHSA-2023:3318 — Moderate
- Red HatRHSA-2023:3319MODERATE2023-04-04
RHSA-2023:3319 — Moderate
- Red HatRHSA-2023:3366MODERATE2023-04-04
RHSA-2023:3366 — Moderate
- Red HatRHSA-2023:3367MODERATE2023-04-04
RHSA-2023:3367 — Moderate
- Red HatRHSA-2023:3445MODERATE2023-04-04
RHSA-2023:3445 — Moderate
- Red HatRHSA-2023:3450MODERATE2023-04-04
RHSA-2023:3450 — Moderate
- Red HatRHSA-2023:3455MODERATE2023-04-04
RHSA-2023:3455 — Moderate
- Red HatRHSA-2023:3536MODERATE2023-04-04
RHSA-2023:3536 — Moderate
- Red HatRHSA-2023:3540MODERATE2023-04-04
RHSA-2023:3540 — Moderate
- Red HatRHSA-2023:3612MODERATE2023-04-04
RHSA-2023:3612 — Moderate
- Red HatRHSA-2023:3624MODERATE2023-04-04
RHSA-2023:3624 — Moderate
- Red HatRHSA-2023:3918MODERATE2023-04-04
RHSA-2023:3918 — Moderate
- Red HatRHSA-2023:3943MODERATE2023-04-04
RHSA-2023:3943 — Moderate
- Red HatRHSA-2023:4335MODERATE2023-04-04
RHSA-2023:4335 — Moderate
Data Freshness Timeline
(refreshed 9× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-06-28 01:04 UTCOSV refresh
- 2026-06-27 03:07 UTCEPSS rescore
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- 2026-06-23 21:31 UTCEPSS rescore
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- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-10 13:21 UTCEPSS rescore
- 2026-06-10 11:47 UTCOSV refresh
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-08 14:15 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 03:40 UTCEG score recompute
- 2026-05-25 03:40 UTCVendor advisory
- 2026-05-25 03:40 UTCGHSA enrichment
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc · redhat
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2023-24534?
When was CVE-2023-24534 disclosed?
Is CVE-2023-24534 actively exploited?
What is the CVSS score of CVE-2023-24534?
How do I remediate CVE-2023-24534?
Dependency Blast Radius
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