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Noroxi
NVD / CVE Program· CNA Gitea

CVE-2026-58511: Webhook Authorization Header Returned in Plaintext via API

LowCVSS 2.7 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 10/100)

  • 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: 0.38% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: code.gitea.io/gitea (Go) 1.27.0; gitea.dev (Go) 1.27.0.

Low priority for now. Upgrade to code.gitea.io/gitea (Go) 1.27.0; gitea.dev (Go) 1.27.0 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

Published
Aug 13, 2026
Updated
Aug 26, 2026
EPSS
0.3% · 33th percentile

Report tools

JSON

Action score

10

Monitor

Low priority for now.

CVSS
10 / 40 · 2.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
proof of concept
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

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

Follow CVE-2026-58511

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 Open Source Git Server

    • up to and including 1.26.4affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Gocode.gitea.io/giteabefore 1.27.01.27.0
Gogitea.devbefore 1.27.01.27.0

Same product

gitea: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-6886Inproper Sanitation of field leading to stored XSS
    50Plan
  • CVE-2026-20896Gitea Docker image trusts spoofable reverse-proxy headers by default
    40Plan
  • CVE-2026-56654Privilege Escalation via Access Token Scope Escalation in API
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-58508Aug 13, 2026 · Two SSRF vulnerabilities in Gitea migration/mirror (DNS rebinding + missing re-validation)
    36Monitor
  • ← EarlierCVE-2026-58510Aug 13, 2026 · GHSA-8fwc-qjw5-rvgp ClearRepoWatches fix not applied to API EditRepo path — sister code path retains stale watches on public->private
    17Monitor
  • Later →CVE-2026-59763Aug 13, 2026 · Unbounded Arch package file metadata can cause resource amplification in Gitea package uploads
    17Monitor

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
Go:code.gitea.io/gitea1.27.0Package registry (OSV)
Go:gitea.dev1.27.0Package registry (OSV)

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).

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-2026-559820 days apartOIDC userinfo Endpoint Returns Identity Claims Without Enforcing API Token Scopes
    36Monitor
  • CVE-2026-584270 days apartPrivate org member list leaked via /members API endpoint — incomplete fix for PR #38145
    30Monitor
  • CVE-2026-584340 days apartPrivate Repository Metadata Remains Accessible After Access Revocation
    30Monitor
  • CVE-2026-2445141 days apartGitea fork synchronization can expose private parent repository data
    30Monitor
  • CVE-2026-2503841 days apartGitea private organization labels are visible to unauthorized users
    30Monitor
  • CVE-2026-5841941 days apartNotification API leaks private issue metadata after access revocation
    30Monitor

Not on record for this CVE: patch commit or PR link · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

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

nvd-secondary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

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

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

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

References

Show all references (2 more)

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

All records