CVE.org (no NVD analysis yet)· CNA Gitea

CVE-2026-104633: Gitea migration memory exhaustion from zero page size

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: 0.39% (FIRST EPSS).
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.
No fixed version is recorded, but the references include a patch (commit or PR) link.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. See the fix and affected versions sections below.

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 migrating a repository from another Gitea instance, Gitea used the page size reported in the source server's API settings to end its paginated downloads. A source that reported `max_response_items` as `0` made these loops run indefinitely and grow server memory until it was exhausted. Any user who can migrate repositories could point a migration at a server they control and cause a denial of service.

MediumCVSS 6.5 · v3.1—No exploit No fix recorded

Denial of service

EUVD-2026-94062

Published: Oct 6, 2026
Updated: Oct 13, 2026
EPSS: 0.3% · 33th percentile
CWE: CWE-400

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 · 0.3%

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
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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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.

Vendor	Product	CPE
gitea	gitea	cpe:2.3:a:gitea:gitea

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

gitea giteabefore 28.1.0

Versions reported by the vendor

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

Gitea Gitea
- up to and including 28.0.0affected · semver

Same product

gitea: all records

Other highest-scoring records for the same primary product.

CVE-2026-60004Gitea before 1.27.1 allows remote code execution via the diffpatch API through Git hook installation.KEV
76This week
CVE-2026-59774Gitea Org-mode file disclosure and code execution
60This week
CVE-2022-30781Gitea before 1.16.7 does not escape git fetch remote.
60This week

Published before and after this one in the same product

← EarlierCVE-2026-96589Oct 6, 2026 · Gitea private repository access retained after rejected transfer
17Monitor
← EarlierCVE-2026-101023Oct 6, 2026 · Gitea OAuth2 refresh token grant accepts access tokens
36Monitor
Later →CVE-2026-105267Oct 6, 2026 · Gitea tag delete route deletes releases without release permission
32Monitor

Remediation

Which version to upgrade to

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

No fix version is recorded for this entry. Check the references for vendor advisories.

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.

Credits

All researchers

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

https://github.com/kewminereporter
https://github.com/silverwindremediation developer
https://github.com/bircniremediation developer

Variant candidates

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

CVE-2026-965800 days apartGitea Actions memory exhaustion through large static matrices
30Monitor
CVE-2026-600188 days apartGitea OneDev migration denial of service
26Monitor
CVE-2026-600218 days apartGitea GitLab migration denial of service
26Monitor
CVE-2026-629258 days apartGitea Alpine package parsing memory exhaustion
26Monitor
CVE-2026-630218 days apartGitea Swift package manifest memory exhaustion
26Monitor
CVE-2026-731308 days apartGitea repository initialization resource exhaustion
17Monitor

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-26-1261 · Oct 7, 2026(Gitea Güvenlik Zafiyeti)

All national notices →

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-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

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

Endpoint Denial of ServiceT1499

Change log

CVSS— → 6.5Oct 7, 2026, 5:07 PM UTC
Severity— → mediumOct 7, 2026, 5:07 PM UTC
SSVC exploitation— → noneOct 7, 2026, 5:07 PM UTC
Exploit maturity— → noneOct 6, 2026, 11:07 PM UTC

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

References

blog.gitea.com/release-of-28.1.0/

Show all references (4 more)

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

All records