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Noroxi
CVE-2026-78433· CVE.org (no NVD analysis yet)· CNA Gitea

Gitea private attachment disclosure through repository mismatch

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.29% (FIRST EPSS).
  • No fixed version is recorded, but the references include a patch (commit or PR) link.

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 web attachment handler skips its cross-repository ownership check for attachments created before 16 January 2026 and checks permissions against the repository named in the request URL instead. An unauthenticated attacker who knows a private attachment's UUID can request it through a public repository's attachment path and retrieve its contents. This can expose issue and pull request attachments or release assets; the random attachment UUID must already be known to the attacker.

—No exploit No fix recorded
Published
Oct 14, 2026
Updated
Oct 14, 2026
EPSS
0.2% · 20th percentile

Report tools

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Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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.

Follow CVE-2026-78433

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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 (Gitea). Independent of NVD's CPE analysis and usually ahead of it.

  • Gitea Gitea

    • 1.26.0 and later · up to and including 1.27.2affected · 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-2020-14144The git hook feature in Gitea 1.1.0 through 1.12.5 might allow for authenticated remote code execution in customer environments where the do
    57Plan
  • CVE-2022-30781Gitea before 1.16.7 does not escape git fetch remote.
    56Plan
  • CVE-2019-11229models/repo_mirror.go in Gitea before 1.7.6 and 1.8.x before 1.8-RC3 mishandles mirror repo URL settings, leading to remote code execution.
    51Plan
  • CVE-2026-59774Gitea Org-mode file disclosure and code execution
    47Plan
  • CVE-2022-1058Open Redirect on login in go-gitea/gitea
    40Plan

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.

Variant candidates

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

  • CVE-2026-20750265 days apartGitea Organization Projects Cross-Organization Authorization Bypass via Project ID (IDOR)
    36Monitor
  • CVE-2026-20897265 days apartGitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)
    36Monitor
  • CVE-2026-20912265 days apartGitea: Cross-Repository Authorization Bypass via Release Attachment Linking Leads to Private Attachment Disclosure
    36Monitor
  • CVE-2026-668770 days apartGitea fork workflow approval bypass through concurrency cancellation
    32Monitor
  • CVE-2026-20736265 days apartGitea Web Attachment Deletion: Cross-Repository Unauthorized Deletion via Missing Repo Ownership Check
    30Monitor
  • CVE-2026-668740 days apartGitea required Actions check bypass through skipped workflows
    26Monitor

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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

CWE-284 · Improper Access Control

Attack context

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

Change log

  1. Exploit maturity— → none

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

References

Show all references (4 more)

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

All records