● Critical · CVSS 9.3

How to Fix CVE-2026-26215: Deserialization RCE in manga-image-translator

Q: Is CVE-2026-26215 being exploited in the wild?

Public exploitation has not been confirmed by CISA at the time of writing. Treat the patch as time-sensitive anyway; reports often lag actual abuse.

Q: Will a WAF or IDS rule fully mitigate CVE-2026-26215?

No. Network-layer filters can reduce noise and slow opportunistic scanners, but they will not stop a determined attacker. The vendor patch is the only durable fix.

Q: Do I need to assume compromise if my manga-image-translator was internet-facing and unpatched?

For an unauthenticated RCE-class flaw exposed to the public internet during the known exploitation window, yes. Review logs, rotate credentials the process could access, and look for unexpected accounts, scheduled tasks, or outbound connections.

Other vulnerabilities in the same area that are worth patching alongside this one:

How to Fix CVE-2026-7119: OS Command Injection in HG3 — OS Command Injection in HG3
How to Fix CVE-2026-6216: Cross-site scripting in DbGate — Cross-site scripting in DbGate
How to Fix CVE-2026-40599: Incorrect authorization in clearancekit , Incorrect authorization in clearancekit
How to Fix CVE-2026-33284: Input Validation Flaw in globaleaks-whistleblowing-software , Input Validation Flaw in globaleaks-whistleblowing-software
How to Fix CVE-2026-44334: Improper Control of Generation of Code ('Code Injection') in PraisonAI , Improper Control of Generation of Code ('Code Injection') in PraisonAI

*By Sai Kiran Pandrala*

⚡ At a glance


Severity	CVSS 9.3 - Critical
Actively exploited?	Not currently listed in CISA KEV
Affected	0 <= beta-0.3
Fixed in	See vendor advisory
Type (CWE)	CWE-502: Deserialization of Untrusted Data

What is CVE-2026-26215?

CVE-2026-26215 is an unsafe deserialization in manga-image-translator. The application accepts attacker-controlled serialized objects and reconstructs them without validating their type, so a crafted payload triggers code execution inside the running process. Unauthenticated remote code execution is the typical impact. Vendor description: manga-image-translator version beta-0.3 and prior in shared API mode contains an unsafe deserialization vulnerability that can lead to unauthenticated remote code execution. The FastAPI endpoints /simple_execute/{method} and /execute/{method} deserialize attacker-controlled request bodies using pickle.loads() without validation.

Why this CVE matters

Deserialization bugs are a favorite of ransomware operators because they convert a single HTTP request into full code execution on the target host. Public proof-of-concept code for this CVE class typically appears within days of disclosure, and weaponized exploits follow shortly after.

For deployments of manga-image-translator that have been exposed to the public internet during the disclosure window, the operating assumption should be that scanning has already happened. Even where exploitation has not been publicly observed, scanning for the vulnerable fingerprint is cheap and routine. Patching closes the door; log review and credential rotation close out the rest of the response.

Am I affected?

You are affected if your installation matches any of these version ranges:

manga-image-translator: 0 <= beta-0.3

Check your installed version against the list above. If you cannot determine the version, treat the system as affected and follow the upgrade path below.

Open manga-image-translator's About dialog or run the vendor-documented version-check command. Compare the result against the affected ranges in the advisory.

How to fix CVE-2026-26215

Read the vendor advisory in full: https://chocapikk.com/posts/2026/manga-image-translator-pickle-rce/
Upgrade manga-image-translator to the patched build listed in the vendor advisory.
Back up the configuration (and database, where applicable) before upgrading.
Rotate any credentials, API keys, or session tokens that the vulnerable service touched. An unauthenticated RCE-class flaw means anything the process could see should be treated as exposed.
Apply the patch in a maintenance window. For HA pairs, upgrade the standby node first, fail over, then upgrade the former primary.
Restart the affected service so the patched binary loads, then verify the new version (see verification section).

Patched-version commands

Vendor advisory: https://github.com/zyddnys/manga-image-translator/issues/1116

Affected: manga-image-translator: 0 <= beta-0.3

Patched in: beta-0.3


# Vendor advisory: https://github.com/zyddnys/manga-image-translator/issues/1116

# npm / Yarn / pnpm.
npm install manga-image-translator@beta-0.3
npm ls manga-image-translator

# Python / pip.
python -m pip install --upgrade "manga-image-translator>=beta-0.3"
python -m pip show manga-image-translator

# Container image.
docker pull <your-registry>/manga-image-translator:beta-0.3
docker stop manga-image-translator && docker rm manga-image-translator
docker run -d --name manga-image-translator <your-registry>/manga-image-translator:beta-0.3


# Vendor advisory: https://chocapikk.com/posts/2026/manga-image-translator-pickle-rce/
# Same flow from a Windows admin workstation.
npm install manga-image-translator@beta-0.3
docker pull <your-registry>/manga-image-translator:beta-0.3

Verify the fix landed


# Vendor advisory: https://chocapikk.com/posts/2026/manga-image-translator-pickle-rce/
# Post-patch verification (replace <service> with the real service unit).
journalctl -u <service> --since "10 minutes ago"
dmesg --since "10 minutes ago"

# Re-scan with your vulnerability scanner (Nessus, Qualys, Tenable, OpenVAS).
# It should no longer flag CVE-2026-26215 on the patched target.

If you cannot patch immediately

Restrict access to the management interface to trusted internal IP addresses only. Block public access at the firewall and require VPN for any remote administration. Apply the patch as soon as a maintenance window allows.

How to verify the fix worked

After applying the patch, verify the running version in the product's admin UI or via the vendor-documented CLI command.
Confirm the patched build matches the version listed in the vendor advisory.
Run an authenticated vulnerability scan with a current signature set and confirm the scanner no longer flags CVE-2026-26215.
Review logs for the entire pre-patch window for indicators of compromise listed in the vendor or CISA advisory.
Confirm any network-layer mitigations that were applied as a stopgap have been reverted (or left in place intentionally) once the patch is verified.

If your installation was internet-reachable during the disclosure window, treat log review as part of the remediation rather than an optional follow-up. Look for unexpected administrator accounts in manga-image-translator, scheduled tasks or cron jobs you did not create, new files in web-accessible directories, and outbound connections to addresses not in your baseline. Suspicious requests to the vulnerable endpoint immediately followed by successful 200-class responses with unusually large bodies are a strong indicator of exploitation.

Frequently asked questions

Is CVE-2026-26215 being exploited in the wild?