CVE-2026-101023· CVE.org (no NVD analysis yet)· CNA Gitea

Gitea OAuth2 refresh token grant accepts access tokens

Noroxi assessment

Priority: Monitor (action score 36/100)

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: 0.35% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
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

Gitea's OAuth2 token endpoint verified the signature and grant of a token submitted with the `refresh_token` grant type, but not that the token was a refresh token. An unexpired access token for the same OAuth2 application and grant could be exchanged for a new access token and refresh token. Whoever holds such an access token could keep access beyond the token's original lifetime.

CriticalCVSS 9.1 · v3.1—No exploit No fix recorded

EUVD-2026-94061

Published: Oct 6, 2026
Updated: Oct 13, 2026
EPSS: 0.3% · 27th percentile
CWE: CWE-287

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Action score

Monitor

Low priority for now.

CVSS: 36 / 40 · 9.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

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

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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-2026-96580Oct 6, 2026 · Gitea Actions memory exhaustion through large static matrices
30Monitor
← EarlierCVE-2026-96589Oct 6, 2026 · Gitea private repository access retained after rejected transfer
17Monitor
Later →CVE-2026-104633Oct 6, 2026 · Gitea migration memory exhaustion from zero page size
26Monitor

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/rezmossreporter
https://github.com/manus-usereporter
https://github.com/danieltk76reporter
https://github.com/gigioneggiandoreporter
https://github.com/DshtAngerreporter
https://github.com/manus-pireporter
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-2026-732780 days apartGitea WebAuthn bypass during OAuth and OIDC sign-in
39Monitor
CVE-2026-964040 days apartGitea installer authentication bypass for existing accounts
32Monitor
CVE-2026-10462712 days apartGitea OpenID account linking without session binding
21Monitor

Chain candidates

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

CVE-2026-894300 days apartGitea push mirror SSRF and forced writes to internal Git hosts
32Monitor
CVE-2026-1010270 days apartGitea migration SSRF through ALLOWED_DOMAINS address check bypass
30Monitor
CVE-2026-964000 days apartGitea migration SSRF to reserved addresses through ALLOWED_DOMAINS
17Monitor
CVE-2026-1010290 days apartGitea migration and pull mirror SSRF through multi-answer DNS
17Monitor

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.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: none

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

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

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

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

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

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

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

CVSS— → 9.1Oct 7, 2026, 10:07 PM UTC
Severity— → criticalOct 7, 2026, 10:07 PM UTC
SSVC exploitation— → noneOct 7, 2026, 10:07 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