How severe is CVE-2026-55882?

No CVSS score has been assigned to CVE-2026-55882 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-55882?

CVE-2026-55882 affects the following packages: github.com/tilt-dev/tilt (Go). Ecosystems affected: Go.

How do I fix CVE-2026-55882?

Update github.com/tilt-dev/tilt to 0.37.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-55882 is resolved across your whole dependency graph.

How do I detect CVE-2026-55882 in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/tilt-dev/tilt, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-55882 if there is no patch (or I can't update yet)?

Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Is CVE-2026-55882 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-55882 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-55882?

CVE-2026-55882 has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 43th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-55882?

CVE-2026-55882 is classified as Information Exposure (CWE-200). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-55882 published, and has it been updated?

CVE-2026-55882 was published on July 10, 2026 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

CVE-2026-55882 — tilt

Fix: tilt-dev/tilt@47393fb

CVE-2026-55882 is a Information Exposure vulnerability in github.com/tilt-dev/tilt. A fix is available for github.com/tilt-dev/tilt — see the affected versions and patch details below.

Tilt: Unauthenticated pprof debug endpoints on the Tilt HUD server

Also known asGHSA-p749-9w62-w533GO-2026-5533

Published

Jul 10, 2026

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Oct 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-55882.

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs43th percentile — riskier than 43% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐹github.com/tilt-dev/tilt

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Summary

The Tilt HUD server mounts Go's net/http/pprof handlers under /debug with no access control. When the HUD is network-exposed, an attacker can read process memory — including session and apiserver tokens — and hold the process under profiling.

Details

A blank import of net/http/pprof registers its handlers on http.DefaultServeMux, which the HUD controller mounts under /debug on both the web router and the apiserver listener. /debug/pprof/heap and /goroutine expose process memory, including the session token (also issued in the Tilt-Token cookie) and the apiserver loopback bearer token; /profile and /trace let a caller sample the process for an arbitrary duration.

Impact

An unauthenticated caller who can reach the listener can extract process memory — including the session and apiserver tokens — and degrade performance by holding the process under CPU profiling or tracing. The leaked tokens compound the missing-authentication finding on the same server.

Conditions for exploitation

Affected version in >= 0.19.5, <= 0.37.3.
HUD (or apiserver) listener bound to a non-loopback address (tilt up --host 0.0.0.0, or TILT_HOST set).
Network reachability to the listener (default port 10350).

Not affected

The default loopback-only bind is not reachable from the network.

Workarounds

Use the default loopback bind (omit --host, unset TILT_HOST) so /debug is not remotely reachable. No complete workaround short of upgrading for non-loopback deployments.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/tilt-dev/tilt`	≥ 0.19.5&&< 0.37.4	0.37.4`go get github.com/tilt-dev/tilt@v0.37.4`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/tilt-dev/tilt, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/tilt-dev/tilt to 0.37.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-55882 is resolved across your whole dependency graph.
Workarounds
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

## Summary The Tilt HUD server mounts Go's `net/http/pprof` handlers under `/debug` with no access control. When the HUD is network-exposed, an attacker can read process memory — including session and apiserver tokens — and hold the process under profiling. ## Details A blank import of `net/http/pprof` registers its handlers on `http.DefaultServeMux`, which the HUD controller mounts under `/debug` on both the web router and the apiserver listener. `/debug/pprof/heap` and `/goroutine` expose process memory, including the session token (also issued in the `Tilt-Token` cookie) and the apiserver

O3 Security · Impact-Aware SCA

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