CVE-2026-31818Disclosure(budibase / budibase)

LOWCVSS 9.9 · CRITICAL

Exploit discussion active in current signal (2 latest mentions)

Immediate actions

Patch budibase budibase systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

Budibase is an open-source low-code platform. Prior to version 3.33.4, a server-side request forgery (SSRF) vulnerability exists in Budibase's REST datasource connector. The platform's SSRF protection mechanism (IP blacklist) is rendered completely ineffective because the BLACKLIST_IPS environment variable is not set by default in any of the official deployment configurations. When this variable is empty, the blacklist function unconditionally returns false, allowing all requests through without restriction. This issue has been patched in version 3.33.4.

budibase CVEs Back to dashboard

2.0/ 10 priority

Sources & remediation

Patch / fix

Exploit / PoC references

https://github.com/Budibase/budibase/security/advisories/GHSA-7r9j-r86q-7g45

Other references

https://github.com/Budibase/budibase/releases/tag/3.33.4

Weakness type (CWE)

CWE-918CWE-1188

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

budibase

Threat summary

Public PoC is present in monitored signal
Patch or workaround signal is available
5 mentions across 2 observed days
Momentum state: stable

What's happening

PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 5 signals
Disclosure: 4 classified signals
Peaked 1d ago at 3 mentions (2026-04-03); latest day: 2
5 total mentions across 2 days

Affected systems

Vendors

budibase

Products

budibase

Deep dive

Activity timeline5 mentions / 2d

Signal classification2 categories

Disclosure

480.0%

Patch

120.0%

Referenced assets5 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-03	3	Disclosure2Patch1
2026-04-04	2	Disclosure2

Full discourse5 posts

PulsePatch.io@pulsepatchio187d
Disclosure
A critical SSRF vulnerability (CVE-2026-31818) affects `Budibase` via its REST Connector, allowing unauthorized access to internal resources. Review configurations. #SSRF #Budibase #AppSecurity https://www.pulsepatch.io/posts/cve-2026-31818-budibase-ssrf
Post summary
The note announces a newly identified SSRF vulnerability in Budibase, provides basic technical details, but does not include a PoC, exploit code, patch, or evidence of active exploitation.
0000059
11 followersView on X
The Hacker Wire@TheHackerWire187d
Disclosure
🔴 CVE-2026-31818 - Critical Budibase is an open-source low-code platform. Prior to version 3.33.4, a server-side request forgery (SSRF) vulnerability exists in Budibase's REST datasource connector. The platform's SS... https://www.thehackerwire.com/vulnerability/CVE-2026-31818/ https://t.co/zMdqMYjykx
Post summary
The text announces a critical SSRF vulnerability (CVE‑2026‑31818) in Budibase prior to v3.33.4, but does not include PoC, exploit code, or patch information.
0000059
164 followersView on X
CVEFind.com@CveFindCom188d
Patch
[CVE-2026-31818: CRITICAL] Budibase platform's SSRF vulnerability in REST connector pre-3.33.4 allows unauthorized server access due to IP blacklist configuration oversight. Update to patch security flaw.#cve,CVE-2026-31818,#cybersecurity https://cvefind.com/CVE-2026-31818
Post summary
Budibase platform’s pre‑3.33.4 REST connector suffers a critical SSRF flaw; users are urged to update to the latest patch to remediate the vulnerability.
0000043
617 followersView on X
CVE@CVEnew188d
Disclosure
CVE-2026-31818 Budibase is an open-source low-code platform. Prior to version 3.33.4, a server-side request forgery (SSRF) vulnerability exists in Budibase's REST datasource connect… https://www.cve.org/CVERecord?id=CVE-2026-31818
Post summary
The note alerts to a server‑side request forgery vulnerability in Budibase prior to version 3.33.4, providing technical details but no exploit or remediation information.
0000046
56.9K followersView on X
0day Signal@0dayPublishing188d
Disclosure
🚨 CVE-2026-31818: Budibase: Server-Side Request Fo... Empty BLACKLIST_IPS var makes Budibase's SSRF protection a complete joke - every internal service becomes reachable via... https://zerodaysignal.com/vulnerability/CVE-2026-31818 #netsec #vulnerability #CVE #sysadmin #zeroday
Post summary
The tweet announces the discovery of a new SSRF vulnerability (CVE‑2026‑31818) in Budibase, noting that an empty blacklist bypasses the protection, and directs readers to a ZerodaySignal article for more details.
0000059
197 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	budibase	budibase	-	-	-

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What researchers are saying

CVE-2026-31818

PulsePatch.io@pulsepatchioDisclosure

The note announces a newly identified SSRF vulnerability in Budibase, provides basic technical details, but does not include a PoC, exploit code, patch, or evidence of active exploitation.

The Hacker Wire@TheHackerWireDisclosure

The text announces a critical SSRF vulnerability (CVE‑2026‑31818) in Budibase prior to v3.33.4, but does not include PoC, exploit code, or patch information.

CVEFind.com@CveFindComPatch

Budibase platform’s pre‑3.33.4 REST connector suffers a critical SSRF flaw; users are urged to update to the latest patch to remediate the vulnerability.

CVE@CVEnewDisclosure

The note alerts to a server‑side request forgery vulnerability in Budibase prior to version 3.33.4, providing technical details but no exploit or remediation information.

0day Signal@0dayPublishingDisclosure

The tweet announces the discovery of a new SSRF vulnerability (CVE‑2026‑31818) in Budibase, noting that an empty blacklist bypasses the protection, and directs readers to a ZerodaySignal article for more details.