Security Vulnerabilities
Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied to other endpoints, were not effective here. This issue has been patched in versions 5.5.17 and 6.2.3.
CVSS Score
4.3
EPSS Score
0.003
Published
2026-06-01
Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without sharing permissions to force the system to share a file with approvers. This results in an authorization bypass and privilege escalation, allowing unauthorized distribution of restricted files. This issue has been patched in version 2.7.2.
CVSS Score
6.5
EPSS Score
0.004
Published
2026-06-01
Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, authenticated users can check if arbitrary files are associated with specific approval workflows where they can request approval. This issue has been patched in version 2.7.2.
CVSS Score
3.3
EPSS Score
0.001
Published
2026-06-01
Nextcloud is an open source content collaboration platform. From version 6.1.0 to before version 8.2.2, an attacker can craft links that would redirect users to another website, when the victim uses the attackers link to log in via user OIDC. This issue has been patched in version 8.2.2.
CVSS Score
3.3
EPSS Score
0.002
Published
2026-06-01
Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config value, non-admin users can in some cases copy arbitrary files (depending on unix permissions) into their own Nextcloud directory via a path traversal. It is recommended that the Nextcloud Server is upgraded to 32.0.4, 31.0.14. It is recommended that the Nextcloud Enterprise Server is upgraded to 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15
CVSS Score
4.4
EPSS Score
0.004
Published
2026-06-01
Under infinite recursion in the routing layer, request-handling can cause OOM error.
Affected Spring Products and Versions:
Spring Cloud Function 3.2.x: versions prior to 3.2.16
Spring Cloud Function 4.1.x: versions prior to 4.1.10
Spring Cloud Function 4.2.x: versions prior to 4.2.6
Spring Cloud Function 4.3.x: versions prior to 4.3.3
Spring Cloud Function 5.0.x: versions prior to 5.0.2
Older, unsupported versions are also affected.
CVSS Score
5.7
EPSS Score
0.002
Published
2026-06-01
OOM error is possible while attempting to add infinite amount of functions to Function Registry.
Affected Spring Products and Versions:
Spring Cloud Function 3.2.x: versions prior to 3.2.16
Spring Cloud Function 4.1.x: versions prior to 4.1.10
Spring Cloud Function 4.2.x: versions prior to 4.2.6
Spring Cloud Function 4.3.x: versions prior to 4.3.3
Spring Cloud Function 5.0.x: versions prior to 5.0.2
Older, unsupported versions are also affected.
CVSS Score
5.7
EPSS Score
0.002
Published
2026-06-01
FlexRIC v2.0.0 crashes when the iApp receives an E42_RIC_SUBSCRIPTION_REQUEST referencing a non-existent E2 Node. The lookup function returns NULL, which is enforced by assert() in Debug builds (SIGABRT) and dereferenced in Release builds (SIGSEGV). A remote unauthenticated attacker can crash the iApp process (port 36422) by sending a subscription request with an arbitrary global_e2_node_id.
CVSS Score
7.5
EPSS Score
0.004
Published
2026-06-01
FlexRIC v2.0.0 contains a reachable assertion in e2ap_recv_sctp_msg() (src/lib/ep/e2ap_ep.c). The function allocates a fixed 32KB receive buffer and enforces assert(rc < len) on the sctp_recvmsg() return value. A remote unauthenticated attacker can send a single SCTP message with payload >= 32,768 bytes to crash the near-RT RIC, iApp, E2 Agent, or xApp process via SIGABRT. No valid E2AP PDU is required. All four SCTP endpoint types (ports 36421 and 36422) share this vulnerable code path. In Release builds (NDEBUG), the stripped assertion leads to a signed-to-unsigned integer overflow and potential out-of-bounds read.
CVSS Score
7.5
EPSS Score
0.004
Published
2026-06-01
FlexRIC v2.0.0 contains a reachable assertion in e2ap_create_pdu() triggered when ASN.1 PER decoding fails. A remote unauthenticated attacker can send any non-PER byte sequence (e.g., a single 0x00 byte) over SCTP to the near-RT RIC (port 36421) or iApp (port 36422) to crash the process via SIGABRT. The assertion is reached before any protocol-level validation occurs. All three E2AP protocol versions (v1.01, v2.03, v3.01) are affected.
CVSS Score
7.5
EPSS Score
0.004
Published
2026-06-01