We don't just alert. We fix.

AI finds every vulnerability. Seal fixes them first.

Attackers use AI to turn a published security fix into a working exploit in minutes. Seal takes the upstream fix as soon as it lands and backports it into the exact versions you run, before the CVE lands in your scanner. No migration, no code changes, no engineering time.

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Trusted by leading organizations

Why security and engineering teams trust us

Blue quotation mark symbol.

It was the most smooth onboarding experience we have had. In the short amount of time, we were actually able to start seeing value from Seal Security. I can maintain the same version of my library, but do it in a way that's vulnerability free. It makes it a lot better from a security and developer experience because it's no longer battling prioritization. It's just a matter of: can Seal fix it? Yeah, absolutely.

Kyle Kurdziolek
VP of Security
BigID

Thanks to Seal’s product, we swiftly addressed security vulnerabilities and updated outdated code packages, saving us valuable time, which we estimated by months of engineering work.

Smiling man with glasses holding a camera outdoors with a crowd and building in the background.
Gad Meyer
Director of software engineering
PayPal

Seal Security's solution has been transformative in helping us secure our open source dependencies. It empowers our security teams with standalone patches, enabling prompt resolution of critical and high security issues. Implementing this solution has been instrumental in maintaining FedRAMP compliance. Their approach has allowed us to handle vulnerabilities associated with CentOS EoL packages, and reinforce our existing protections.

Smiling bald man wearing glasses, a dark blazer, and a blue shirt standing near a window.
Yul Bahat
Director of cybersecurity
Kiteworks

Security enabled us to eliminate a major ongoing risk to our development roadmap. The integration with their solution was simple, allowing us to quickly achieve significant patching coverage and ensure the seamless remediation of vulnerabilities.

Smiling man with short dark hair wearing a green and white plaid shirt against a plain background.
Matt Farmer
Principal site reliability engineer
CENSYS
Why now

AI changed how vulnerabilities are found and exploited. Remediation didn't change.

10,000+

high- and critical-severity vulnerabilities found with a single AI model, Claude Mythos Preview, in about a month.

Source: Anthropic, Project Glasswing update, May 22, 2026
1 in 4

known exploited vulnerabilities in the first half of 2026 was exploited on or before the day its CVE was published (23.4%).

Source: VulnCheck, 1H 2026 State of Exploitation, July 2026
82%

of organizations carry security debt, and flaws are now created faster than teams can fix them.

Source: Veracode, 2026 State of Software Security
94%

of CVEs have a public fix commit before the advisory, a median of 11 days earlier.

Source: Seal Security Research, The Silent Patch Gap (2026)

Seal closes the gap: verified fixes for the versions you run, without upgrades, before the CVE.

"Progress on software security used to be limited by how quickly we could find new vulnerabilities. Now it's limited by how quickly we can verify, disclose, and patch the large numbers of vulnerabilities found by AI."Anthropic, Project Glasswing update, May 2026

Remediation built for the AI era

Blue circle with a black upward right arrow crossed by a diagonal green and blue gradient line, indicating no upward right direction.

Ahead of disclosure

Fixed before the CVE goes public, and before a fixed version is released. Seal watches upstream code for security fixes that don't have a CVE yet, reproduces the vulnerability and ships a sealed version early. No upgrade required: patch now, upgrade on your own timeline. One CLI command, no manifest changes.

Three translucent blue cubes connected with a green shield featuring a checkmark symbol overlay, representing secure blockchain or data safety.

Verified, not generated

Seal stands behind every fix. Taken from the upstream fix and backported to your exact version. Built and tested against your version, reviewed by Seal's security engineers and validated by AI. Human-readable patches your team can review before applying.

Autonomous remediation. Human-approved.

Coding agents find the sealed version, create the Sealing Rule and request new fixes through the Seal MCP server. Every fix is visible, reviewable and approved by your team. Company-wide patching rules apply each fix to every affected project. No lock-in: sealed libraries stay in your registry, even if you stop using Seal.

How we do it

The fix, without the migration. A sealed version is your exact version plus the security patch, 6.5 lines on average.

Running in your build
spring-beans
4.3.30.RELEASE 4.3.30.RELEASE+sp1
CVE-2022-22965 · critical 9.8 sealed · no CVE
4.3.x reached end of life on 31 Dec 2020
CachedIntrospectionResults.java · spring-beans 5.3.18
31 Mar 2022
  PropertyDescriptor[] pds = this.beanInfo.getPropertyDescriptors();context
  for (PropertyDescriptor pd : pds) {context
+    if (Class.class == beanClass && (!"name".equals(pd.getName())the fix
+        && !pd.getName().endsWith("Name"))) {the fix
+        continue;  // only name variants of Classthe fix
+    }the fix
+    if (ClassLoader.class … ProtectionDomain.class) {the fix
+        continue;  // nobody needs to bind to thosethe fix
    if (logger.isTraceEnabled()) {context
Shipped in 5.3.18 and 5.2.20 only. Never in 4.3.x.

Verified against your version, not the newest one

Every backport is built and tested before it ships.

Builds clean against 4.3.30.RELEASE
Spring 4.3 test suite passes
Public API byte-compatible, no call sites change
Spring4Shell payload no longer binds

Delivered where your builds already look

A distinct version your tooling can resolve, pin, and audit.

JFrog Artifactory
Seal remote repository, resolves transparently
Sonatype Nexus
Same coordinates, sealed version
Seal CLI in CI
Discovery, substitution, scanner sync
Signed evidence
Patch source, SBOM entry, provenance

No application code changes. No manifest rewrites. Version pins stay yours.

The finding closes on the next scan

A real version bump, so your system of record moves on its own.

Finding
Severity
Status
CVE-2022-22965
Critical 9.8
No fix for 4.3.x Fixed in 4.3.30.RELEASE+sp1

Synced back to Snyk · Black Duck · GHAS · Wiz · Checkmarx · Aqua

the security fix · 6 lines
+ if (Class.class == beanClass && …
+    continue;
+ if (ClassLoader.class … ) continue;
From upstream fix to a closed finding, before the CVE is published.
How we do it

The fix, without the migration. A sealed version is your exact version plus the security patch, 6.5 lines on average.

Running in your build
spring-beans
4.3.30.RELEASE CVE-2022-22965 · critical 9.8 · no fix for 4.3.x
sealed ↓
4.3.30.RELEASE+sp1 sealed · no CVE
No application code changes. No manifest rewrites. Version pins stay yours.
  1. 01
    Isolate
    Take only the added lines from the upstream fix, as soon as it lands, even before a CVE or a fixed release exists.
  2. 02
    Backport
    Apply them to the exact version you run.
  3. 03
    Verify
    Build it, test it, prove the vulnerability is gone.
  4. 04
    Deliver
    The sealed version lands in your artifact repo and CI.
  5. 05
    Close
    Your scanner sees a fixed version and the finding closes.

From upstream fix to a closed finding, before the CVE is published.

Built for agents

Remediation your agents can run

Coding agents struggle with breaking upgrades, because a major-version migration needs judgment with input from multiple segmented services and undocumented tribal knowledge. A sealed version needs no migration, so an agent can apply it on its own. Through the Seal MCP server, agents in Claude Code, Cursor or any MCP-aware client can find the sealed version, create a Sealing Rule for every affected project and request a fix for anything not yet sealed, with the same permissions as the user.

Connect your agent

Fixes for every part of your stack

Secure application dependencies

Patch direct and transitive dependencies in place, even the ones your scanner marks as “unfixable”.

Learn more

Uphold compliance and meet customer SLAs

Meet remediation deadlines for FedRAMP, PCI DSS 4.0, NYDFS, DORA and customer audits, even as finding volume grows.

Learn more

Secure software nobody maintains anymore

End-of-life distros like CentOS and RHEL 6, abandoned libraries. If upstream stopped shipping fixes, Seal still does.

Learn more

Secure containers and Linux infrastructure

Backported fixes across containers, base images, VMs and bare metal, without upgrading your OS.

Learn more

Watch Seal Security in action

Book a live demo
Table showing three rows with columns for language, package, version, a colored status indicator, and a seal action button; first row is Javascript ejs 2.7.4 with red C status and a green 'Sealed' button clicked, second is Python protobuf-c 0.41.3 with red C status and navy Seal button, third is RPM nscd 2.17-326 with orange H status and navy Seal button.

Latest research and publications

AI found the flaws. You don't need 1,000 contractors to fix them.
Security

AI found the flaws. You don't need 1,000 contractors to fix them.

Bank of America brought in 1,000 contractors to patch flaws surfaced by AI models. AI that validates and fixes on the other side clears the same queue without the headcount.

Explore
Between a Rock and a Hard Place: When Dependency Cooldowns and CVE Policies Deadlock the Build
Security

Between a Rock and a Hard Place: When Dependency Cooldowns and CVE Policies Deadlock the Build

A security lead told us his cooldown rule and his block-high-CVEs rule left his build with no allowed version. AI vulnerability research from Anthropic and OpenAI is making that deadlock common, and a backport breaks it.

Explore
Lost in Translation: A Native Heap Overflow in Unmaintained Jansi (CVE-2026-8484)
Research

Lost in Translation: A Native Heap Overflow in Unmaintained Jansi (CVE-2026-8484)

CVE-2026-8484 is a heap buffer overflow in the C code behind Jansi's ioctl() wrapper, a Java package that ships with Apache Maven. Every release is affected and the project is unmaintained, so there is no version to upgrade to. Here is how the bug works and how we patched it, native binaries included.

Explore

Frequently asked questions

Discover how Seal Security identifies and patches open source vulnerabilities without breaking changes.

What is Seal Security?
What is Seal Security's SLA for new vulnerabilities?
What regulations does Seal Security help organizations support?
What programming languages does Seal Security support?
How is a Seal fix different from an AI-generated patch?
Can AI coding agents use Seal?
Can Seal Security fix vulnerabilities before a CVE is published?
How does Seal keep up with AI-discovered vulnerabilities?
What integrations does Seal Security support?
What Linux operating systems does Seal Security support?
What compliance certifications does Seal Security have?