NVD / CVE Program· CNA Go

CVE-2023-45290: Memory exhaustion in multipart form parsing in net/textproto and net/http

Noroxi assessment

Priority: Monitor (action score 26/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 1.1% (FIRST EPSS); higher than 67% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Go standard library net/textproto 1.21.8, 1.22.1.

Low priority for now. Upgrade to Go standard library net/textproto 1.21.8, 1.22.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

When parsing a multipart form (either explicitly with Request.ParseMultipartForm or implicitly with Request.FormValue, Request.PostFormValue, or Request.FormFile), limits on the total size of the parsed form were not applied to the memory consumed while reading a single form line. This permits a maliciously crafted input containing very long lines to cause allocation of arbitrarily large amounts of memory, potentially leading to memory exhaustion. With fix, the ParseMultipartForm function now correctly limits the maximum size of form lines.

MediumCVSS 6.5 · v3.1—No exploit Fix available

Denial of service

Published: Mar 5, 2024
Updated: Jun 17, 2026
EPSS: 1.1% · 67th percentile
CWE: CWE-770

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 26 / 40 · 6.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.1%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Go). Independent of NVD's CPE analysis and usually ahead of it.

Go standard library net/textproto
- before 1.21.8affected · semver
- 1.22.0-0 and later · before 1.22.1affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

+96

Same product

go standard library: all records

Other highest-scoring records for the same primary product.

CVE-2026-94440Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart
30Monitor
CVE-2026-42507Arbitrary inputs are included in errors without any escaping in net/textproto
21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Go standard library net/textproto	1.21.8	Vendor (CNA)
Go standard library net/textproto	1.22.1	Vendor (CNA)
almalinux:delve	1.21.2-3.module_el8.10.0+3760+4dd778f9 · AlmaLinux:8	Package registry (OSV)
almalinux:git-lfs	3.4.1-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:go-toolset	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:golang	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:golang-bin	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:golang-docs	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:golang-misc	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:golang-src	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:golang-tests	1.21.9-2.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:podman	4:4.9.4-4.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:podman-docker	4:4.9.4-4.el9_4 · AlmaLinux:9	Package registry (OSV)
almalinux:podman-plugins	4:4.9.4-4.el9_4 · AlmaLinux:9	Package registry (OSV)
Go:stdlib	1.21.8	Package registry (OSV)
Go:stdlib	1.22.1	Package registry (OSV)
opensuse:go1.21	1.21.8-150000.1.27.1 · openSUSE:Leap 15.5	Package registry (OSV)
opensuse:go1.21-openssl	1.21.13.1-150000.1.11.1 · openSUSE:Leap 15.5	Package registry (OSV)
opensuse:go1.22	1.22.1-150000.1.9.1 · openSUSE:Leap 15.5	Package registry (OSV)
opensuse:go1.22-openssl	1.22.7.1-150000.1.3.1 · openSUSE:Leap 15.5	Package registry (OSV)
red hat:butane	0:0.21.0-1.rhaos4.16.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:butane-debuginfo	0:0.21.0-1.rhaos4.16.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:butane-debugsource	0:0.21.0-1.rhaos4.16.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:openshift	0:4.16.0-202406170957.p0.g29c95f3.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:openshift-hyperkube	0:4.16.0-202406170957.p0.g29c95f3.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:openshift-kube-apiserver	0:4.16.0-202406170957.p0.g29c95f3.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:openshift-kube-controller-manager	0:4.16.0-202406170957.p0.g29c95f3.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:openshift-kube-scheduler	0:4.16.0-202406170957.p0.g29c95f3.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:openshift-kubelet	0:4.16.0-202406170957.p0.g29c95f3.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)
red hat:ose-azure-acr-image-credential-provider	0:4.16.0-202404301345.p0.g0e95532.assembly.stream.el8 · Red Hat:openshift:4.16::el8	Package registry (OSV)

+19

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Bartek Nowotarski

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

Weakness class (CWE)

CWE-770 · Allocation of Resources Without Limits or Throttling

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

For records you follow, these changes also arrive as notifications. →

References

www.openwall.com/lists/oss-security/2024/03/08/4

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	aardvark-dns	before 2:1.10.0-1.module_el8.10.0+3876+e55593a8	2:1.10.0-1.module_el8.10.0+3876+e55593a8
AlmaLinux:8	aardvark-dns	before 2:1.10.1-2.module_el8.10.0+3901+4b80ecd7	2:1.10.1-2.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	aardvark-dns	before 2:1.10.0-1.module_el8.10.0+3858+6ad51f9f	2:1.10.0-1.module_el8.10.0+3858+6ad51f9f
AlmaLinux:8	aardvark-dns	before 2:1.10.0-1.module_el8.10.0+3792+03eaed9c	2:1.10.0-1.module_el8.10.0+3792+03eaed9c
AlmaLinux:8	buildah	before 2:1.33.8-4.module_el8.10.0+3901+4b80ecd7	2:1.33.8-4.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	buildah	before 2:1.33.8-4.module_el8.10.0+3876+e55593a8	2:1.33.8-4.module_el8.10.0+3876+e55593a8
AlmaLinux:8	buildah-tests	before 2:1.33.8-4.module_el8.10.0+3901+4b80ecd7	2:1.33.8-4.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	buildah-tests	before 2:1.33.8-4.module_el8.10.0+3876+e55593a8	2:1.33.8-4.module_el8.10.0+3876+e55593a8
AlmaLinux:8	cockpit-podman	before 84.1-1.module_el8.10.0+3858+6ad51f9f	84.1-1.module_el8.10.0+3858+6ad51f9f
AlmaLinux:8	cockpit-podman	before 84.1-1.module_el8.10.0+3876+e55593a8	84.1-1.module_el8.10.0+3876+e55593a8
AlmaLinux:8	conmon	before 3:2.1.10-1.module_el8.10.0+3901+4b80ecd7	3:2.1.10-1.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	conmon	before 3:2.1.10-1.module_el8.10.0+3845+87b84552	3:2.1.10-1.module_el8.10.0+3845+87b84552
AlmaLinux:8	conmon	before 3:2.1.10-1.module_el8.10.0+3858+6ad51f9f	3:2.1.10-1.module_el8.10.0+3858+6ad51f9f
AlmaLinux:8	conmon	before 3:2.1.10-1.module_el8.10.0+3876+e55593a8	3:2.1.10-1.module_el8.10.0+3876+e55593a8
AlmaLinux:8	container-selinux	before 2:2.229.0-2.module_el8.10.0+3901+4b80ecd7	2:2.229.0-2.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	container-selinux	before 2:2.229.0-2.module_el8.10.0+3876+e55593a8	2:2.229.0-2.module_el8.10.0+3876+e55593a8
AlmaLinux:8	containernetworking-plugins	before 1:1.4.0-5.module_el8.10.0+3876+e55593a8	1:1.4.0-5.module_el8.10.0+3876+e55593a8
AlmaLinux:8	containernetworking-plugins	before 1:1.4.0-5.module_el8.10.0+3901+4b80ecd7	1:1.4.0-5.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	containers-common	before 2:1-82.module_el8.10.0+3901+4b80ecd7	2:1-82.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	containers-common	before 2:1-82.module_el8.10.0+3876+e55593a8	2:1-82.module_el8.10.0+3876+e55593a8
AlmaLinux:8	crit	before 3.18-5.module_el8.10.0+3901+4b80ecd7	3.18-5.module_el8.10.0+3901+4b80ecd7
AlmaLinux:8	crit	before 3.18-5.module_el8.10.0+3858+6ad51f9f	3.18-5.module_el8.10.0+3858+6ad51f9f
AlmaLinux:8	crit	before 3.18-5.module_el8.10.0+3845+87b84552	3.18-5.module_el8.10.0+3845+87b84552
AlmaLinux:8	crit	before 3.18-5.module_el8.10.0+3876+e55593a8	3.18-5.module_el8.10.0+3876+e55593a8