CVE Vulnerability Catalog

Translated CVE descriptions from NVD NIST - in English

CISA KEV catalog updated: (v2026.08.27)

Weekly CVE digest

One email a week with newly published vulnerabilities worth knowing about. No account needed.

This digest covers new vulnerabilities in general, not your servers. If you want to know which of them actually run in your infrastructure, that is what Secvalis does: it scans your machines and reports only what concerns them.

I agree to receive the weekly CVE digest at the address above. I can withdraw this consent at any time using the link in the footer of every message.

CVE-2026-81827
Medium

Affected versions of Flowintel incorrectly attempted to validate login email addresses by calling Email(email), which does not perform WTForms field validation; it merely constructs a validator object. Consequently, malformed attacker-controlled email input could continue through the login process and be written to security-relevant logs. The vulnerable code inserted the supplied email into both a warning log and the custom audit logger. Since CR/LF characters were not escaped, an unauthenticated attacker could potentially inject additional physical log lines or forge misleading log entries.

CVE-2026-81826
Critical

Affected versions of Flowintel do not revoke existing authenticated sessions when a user's password is changed. An attacker with a valid session retains access until it expires. The fix detects password changes and explicitly invalidates user sessions after the database update, applied in edit_user_core() and admin_edit_user_core(). Versions >=3.3.0 are affected.

CVE-2026-81820
Medium

Affected versions of Flowintel construct timeline HTML using attacker-controllable MISP object fields such as object UUID, object name, attribute value, attribute type, comment, first/last seen values, and IDS flag. Those values were concatenated directly into HTML strings before rendering. The upstream commit explicitly states that DOMPurify removed XSS vectors but still allowed other HTML elements, such as forms, through.

CVE-2026-81819
Medium

Affected versions of Flowintel expose the /my_assignment/user API endpoint to any authenticated API user. The endpoint accepts a user_id parameter identifying the user whose assignments should be returned, but previously had no role restriction beyond general API authentication. As a result, a lower-privileged authenticated user could potentially query another user’s assignment information by supplying that user’s identifier.

CVE-2026-81818
High

Flowintel versions 3.3.0 and later contain an authorization flaw in the administrative user-edit API. An organization administrator could edit a full administrator account within their own organization, including changing its password. The fix adds a higher-privilege boundary check that returns 403 if the user to edit is an admin.

CVE-2026-81817
High

Flowintel versions 3.3.0 and later contain an insecure direct object reference (IDOR) issue across numerous task endpoints. Routes did not enforce that a task belonged to the supplied case, allowing an authenticated user with access to one case to manipulate tasks from another case. The patch adds task_case_bound_required and checks that note_id belongs to the current task.

CVE-2026-81735
Critical

In the mcp-http-server package of UI-TARS-desktop, startServer.ts defaulted the listen address to '::' (all interfaces), and authentication middleware was optional. The commands and filesystem servers exposed tools without requiring credentials, allowing unauthenticated clients to run arbitrary commands or read/write files. The listen default changed to 127.0.0.1 in commit c2ad42e3eb9b27830db41a3e6f51ca7179d9b168; package version remained 1.2.4.

CVE-2026-81727
High

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incr_download methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader directory can create hardlinks pointing to outside-root files that are then overwritten during normal package extraction.

CVE-2026-81726
High

NLTK through 3.10.3 contains a path traversal vulnerability in model-artifact APIs that bypass pathsec enforcement by using raw file operations on caller-controlled paths. Attackers can read or write files outside allowed sandbox roots through TransitionParser, AveragedPerceptron, PerceptronTagger, and maxent parameter APIs when pathsec is enabled.

CVE-2026-81725
Low

NLTK before 3.10.3 has a regular expression denial of service vulnerability in Pl196xCorpusReader. Attackers can supply malformed TEI blocks causing quadratic CPU consumption.

CVE-2026-81724
Medium

NLTK before 3.10.3 contains an uncontrolled recursion vulnerability in nltk.featstruct.FeatStructReader that allows unauthenticated attackers to cause a denial of service by supplying deeply nested feature-structure input. Attackers can craft trivial payloads with nested brackets that exceed Python's recursion limit and raise an unhandled RecursionError, crashing applications that parse user-supplied feature structures or feature grammars.

CVE-2026-81723
Low

NLTK before 3.10.3 has a quadratic CPU exhaustion vulnerability in XMLCorpusView._read_xml_fragment(). Malformed XML files can cause severe CPU consumption and DoS.

CVE-2026-81722
High

NLTK PorterStemmer in versions <= 3.10.2 (fixed in 3.10.3) contains an inefficient-algorithmic-complexity denial of service in PorterStemmer.stem(). The _is_consonant() helper walks backward over the entire run of trailing 'y' characters on every call, and _measure() invokes it for each stem position, causing O(n^2) behavior. A single ~20-50 KB untrusted token consisting of a long run of the letter 'y' followed by a matching suffix (e.g., 'ness') can pin a CPU core for seconds to minutes.

CVE-2026-81721
High

openssl_encrypt before 1.4.9 fails to validate KDF cost parameters in encrypted file metadata and keystore headers, allowing attackers to trigger unbounded memory allocation. Attackers can craft malicious encrypted files declaring arbitrarily large Argon2, scrypt, or balloon KDF parameters to exhaust system memory and crash the process without authentication.

CVE-2026-81720
Medium

openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication.

CVE-2026-81719
High

openssl_encrypt before 1.4.9 executes untrusted third-party plugins with insufficient controls: the plugin signature policy defaulted to WARN, so an unsigned/unverifiable non-built-in plugin was compiled and executed in the host process at import time, before the runtime sandbox is installed. The only default gate was an incomplete, bypassable AST denylist. If a user is induced to load an attacker's plugin, this results in arbitrary code execution with the privileges of the user running openssl_encrypt.

CVE-2026-81718
High

openssl_encrypt versions before 1.4.9 use under-parameterized PBKDF2-HMAC-SHA256 with only 100,000 iterations to protect PQC keyfile private keys and 10,000 iterations for dual-encryption file-password verification. Attackers who obtain keyfiles or encrypted files can brute-force wrapping passwords offline using GPU or ASIC acceleration.

CVE-2026-81717
Low

openssl_encrypt before 1.4.9 has two weaknesses in the portable USB drive feature. Integrity verification misses files not in the manifest, and a fixed KDF salt enables rainbow-table attacks.

CVE-2026-81716
Medium

openssl_encrypt (pip: openssl-encrypt) versions before 1.4.9 contain a path traversal flaw in PluginSandbox._is_safe_path, which authorized file access using a bare string-prefix match. A sandboxed plugin without the READ_FILES permission could read or write another plugin's directory that merely shares a name prefix (e.g., .../plugins/foobar matching allowed .../plugins/foo), breaking per-plugin isolation within the same user. Fixed by matching each allowed directory exactly or with a trailing path separator.

CVE-2026-81715
Low

openssl_encrypt (pip package openssl-encrypt) versions up to 1.4.8 do not redact the keyserver bearer token passed as the positional argument to 'keyserver set-token' in the --debug argv dump, because sanitize_argv_for_debug fails to sanitize it. As a result the token is printed in cleartext to stderr under --debug (even without --unsafe-show-secrets), persisting the credential in logs and terminal history. Fixed in 1.4.9.

PreviousPage 1 of 5830Next

Vulnerability data from NVD (NIST) · CISA KEV · EPSS