CVE-2026-1116
Cross-site Scripting (XSS) in parisneo/lollms
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
8.2
Cross-site Scripting (XSS) in parisneo/lollms
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
- Record
CVE-2026-1116- CVSS 3.0
- 8.2 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-21692
8.2
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
- Record
EUVD-2026-21692- CVSS 3.0
- 8.2 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w676-j9x4-3hq2
8.2
A Cross-site Scripting (XSS) vulnerability was identified in the `from_dict` method of the ...
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
- Record
GHSA-w676-j9x4-3hq2- CVSS 3.0
- 8.2 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
6.1
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
- Record
CVE-2026-1116- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 8.2 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
8.2
Cross-site Scripting (XSS) in parisneo/lollms
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
- Record
CVE-2026-1116- CVSS 3.0
- 8.2 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVPYSEC-2026-2200
6.1
A Cross-site Scripting (XSS) vulnerability was identified in the from_dict method of the AppLollmsMessage class in parisneo/lollms prior to version 2.2.0. The vulnerability arises from the lack of sanitization or HTML encoding of the content field when deserializing user-provided data. This allows an attacker to inject malicious HTML or JavaScript payloads, which can be executed in the context of another user's browser. Exploitation of this vulnerability can lead to account takeover, session hijacking, or wormable attacks.
- Record
PYSEC-2026-2200- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lollmsPyPI |
before 2.1.1, plus listed versions 1.1.101.1.111.1.121.1.131.1.14 Show 45 moreShow less1.1.151.1.161.1.171.1.181.1.191.1.201.1.211.1.221.1.251.1.261.1.271.1.281.1.291.1.31.1.301.1.311.1.321.1.331.1.341.1.351.1.361.1.371.1.381.1.451.1.461.1.471.1.481.1.491.1.51.1.501.1.511.1.521.1.531.1.551.1.561.1.571.1.581.1.591.1.61.1.601.1.611.1.621.1.631.1.641.1.65 |
2.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-1116 is a high vulnerability (CVSS 8.2) in Lollms, published April 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. Fixed in lollms 2.1.1.
References
Left out here: 68 versions. The JSON record has them.