# CVE-2026-11748: Central Dogma: LDAP injection in SearchFirstActiveDirectoryRealm enables authentication confusion and audit log evasion

> An unauthenticated attacker can manipulate LDAP search filters to enumerate directory structures and cause authentication confusion in Central Dogma.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 22 Jun 2026
- **Updated:** 22 Jun 2026
- **Also known as:** GHSA-98q5-5qh2-7w75

## What is CVE-2026-11748?

CVE-2026-11748 is a medium-severity vulnerability in LY Corporation Central Dogma, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been identified in centraldogma-server-auth-shiro versions prior to 0.84.0, where the SearchFirstActiveDirectoryRealm substitutes the login username into an LDAP search filter without neutralizing LDAP filter metacharacters, allowing an unauthenticated attacker to manipulate the filter to cause authentication confusion and enumerate the directory structure.

Weakness: CWE-90 (Improper Neutralization of Special Elements used in an LDAP Query)

## Which versions are affected by CVE-2026-11748?

2 open source packages ship an affected version, including com.linecorp.centraldogma:centraldogma-server-auth-shiro.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `com.linecorp.centraldogma:centraldogma-server-auth-shiro` | Maven | All versions | 0.84.0 |
| `com.linecorp.centraldogma:centraldogma-server-auth-shiro` | Maven | All versions | 0.84.0 |

## How do I fix CVE-2026-11748?

Upgrade com.linecorp.centraldogma:centraldogma-server-auth-shiro to 0.84.0 or later.

## Is CVE-2026-11748 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11748 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11748 and fix it if it is affected.

What it is: CVE-2026-11748 is a medium-severity vulnerability in LY Corporation Central Dogma, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11748 exists.

Affected packages and fixed versions:
- com.linecorp.centraldogma:centraldogma-server-auth-shiro (Maven): affected all versions; fixed in 0.84.0
- com.linecorp.centraldogma:centraldogma-server-auth-shiro (Maven): affected all versions; fixed in 0.84.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11748/ (Markdown: https://insights.sbomify.com/CVE-2026-11748/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11748
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11748
- OSV: https://osv.dev/vulnerability/CVE-2026-11748

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11748/
Summaries are generated and may contain mistakes; the official description above is the record.