Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6.
Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6. 8.3.8, 8.2.8, 8.1.8, and 7.10.15, the Meteor DDP methods getThreadsList and getThreadMessages accept rid / tmid as raw, untyped parameters with no schema validation. A MongoDB operator object (e.g. {"$gt": "4"}) can be substituted for a string room-id or message-id. The authorization check resolves to a room the attacker already has access to, while the downstream data query fans out across all rooms - disclosing private thread parents and their full reply content to any low-privilege authenticated user. The REST route chat.getThreadsList was patched in v5.0 (HackerOne report #1446767) by adding rid: {type:'string'} AJV validation. The equivalent DDP method was never given the same fix and remains exploitable
- Published
- Aug 21, 2026
- Updated
- Sep 4, 2026
- EPSS
- 0.3% · 25th percentile
- CWE
- CWE-20
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Report tools
Action score
17
Monitor
Low priority for now.
- CVSS
- 17 / 40 · 4.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| rocket.chat | rocket.chat | cpe:2.3:a:rocket.chat:rocket.chat |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- rocket.chat rocket.chatbefore 7.10.15
- rocket.chat rocket.chat8.1.0 and later · before 8.1.8
- rocket.chat rocket.chat8.2.0 and later · before 8.2.8
- rocket.chat rocket.chat8.3.0 and later · before 8.3.8
- rocket.chat rocket.chat8.4.0 and later · before 8.4.6
- rocket.chat rocket.chat8.5.0 and later · before 8.5.3
- rocket.chat rocket.chat8.6.0 and later · before 8.6.2
- rocket.chat rocket.chat8.7.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (hackerone). Independent of NVD's CPE analysis and usually ahead of it.
Rocket.Chat Rocket.Chat
- before 8.8.0affected · semver
- before 8.7.1affected · semver
- before 8.6.2affected · semver
- before 8.5.3affected · semver
- before 8.4.6affected · semver
- before 8.3.8affected · semver
- before 8.2.8affected · semver
- before 8.1.8affected · semver
- before 7.10.15affected · semver
Same product
rocket.chat: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-22911A improper input sanitization vulnerability exists in Rocket.Chat server 3.11, 3.12 & 3.13 that could lead to unauthenticated NoSQL injectio68This week
- CVE-2021-22910A sanitization vulnerability exists in Rocket.Chat server versions <3.13.2, <3.12.4, <3.11.4 that allowed queries to an endpoint which could40Plan
- CVE-2017-1000493Rocket.Chat Server version 0.59 and prior is vulnerable to a NoSQL injection leading to administrator account takeover40Plan
- CVE-2026-58066Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did n39Monitor
- CVE-2026-29198In Rocket.Chat <8.3.0, <8.2.1, <8.1.2, <8.0.3, <7.13.5, <7.12.6, <7.11.6, and <7.10.9, a NoSQL injection vulnerability can lead to account t39Monitor
- CVE-2023-28316A security vulnerability has been discovered in the implementation of 2FA on the rocket.chat platform, where other active sessions are not i39Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Rocket.Chat Rocket.Chat | 7.10.15 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.1.8 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.2.8 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.3.8 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.4.6 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.5.3 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.6.2 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.7.1 | Vendor (CNA) |
| Rocket.Chat Rocket.Chat | 8.8.0 | Vendor (CNA) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Aang (iamaangx028)finder
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.