CVE-2025-27144
Go JOSE's Parsing Vulnerable to Denial of Service
No known exploitation. EPSS puts it in the 32nd percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including support for JSON Web Encryption (JWE), JSON Web Signature (JWS), and JSON Web Token (JWT) standards. In versions on the 4.x branch prior to version 4.0.5, when parsing compact JWS or JWE input, Go JOSE could use excessive memory. The code used strings.Split(token, ".") to split JWT tokens, which is vulnerable to excessive memory consumption when processing maliciously crafted tokens with a large number of `.` characters. An attacker could exploit this by sending numerous malformed tokens, leading to memory exhaustion and a Denial of Service. Version 4.0.5 fixes this issue. As a workaround, applications could pre-validate that payloads passed to Go JOSE do not contain an excessive number of `.` characters.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.4% chance of exploitation activity in the next 30 days, which ranks it in the 32nd percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 486 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablepublished, weakness classified, att&ck mapped, record updated
Affected products
- openSUSE TumbleweedOperating Systems / linux-distro
- SUSE Linux Enterprise Server for SAP ApplicationsOperating Systems / linux-distro
- SUSE Linux Enterprise MicroOperating Systems / linux-distro
- SUSE Manager Retail Branch ServerOperating Systems / linux-distro
- SUSE Manager ProxyOperating Systems / linux-distro
- SUSE Manager ServerOperating Systems / linux-distro
- SUSE Enterprise StorageOperating Systems / linux-distro
- SUSE Linux Enterprise High Performance ComputingOperating Systems / linux-distro
And 11 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Scored 7.5 by bdu.
How it is reached
- Access Vector NetworkExploitable remotely over the network
- Access Complexity LowNo special conditions required
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability H
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
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