PYSEC-2026-3680 Lemur: Server-Side Request Forgery via the ACME client following server-controlled URLs

Summary The ACME client used to issue certificates from Let's Encrypt / Google Public CA / private ACME CAs connects to an acmeurl, then issues requests to URLs that the ACME server returns in its directory/order/authorization/finalize responses - this is the classic ACME-client SSRF RFC 8555...

PYSEC-2026-3678 Lemur: Any user can revoke arbitrary certificates at the CA by uploading a duplicate record and revoking it

Summary Repo under test: https://github.com/Netflix/lemur PUT /api/1/certificates//revoke authorizes the caller against the Lemur database row creator == current user, or CertificatePermission over the row's roles rather than the underlying CA-side certificate identity. Separately, POST...

Lemur: Any user can revoke arbitrary certificates at the CA by uploading a duplicate record and revoking it

SummaryRepo under test: https://github.com/Netflix/lemurPUT /api/1/certificates//revoke authorizes the caller against the Lemur database row creator == current user, or CertificatePermission over the row's roles rather than the underlying CA-side certificate identity. Separately, POST...

Lemur: Incomplete fix for GHSA-v2wp-frmc-5q3v -- ACME authority update endpoint allows non-admin to replace `acme_url` with internal IP, bypassing allowlist

SummaryThe fix for GHSA-v2wp-frmc-5q3v added validateacmeurl to reject acmeurl values not in ACMEDIRECTORYHOSTALLOWLIST, but the validation is only called at authority creation time POST. The authority update endpoint PUT /api/1/authorities/ accepts and stores arbitrary options -- including a...

PYSEC-2026-3661 devpi-server may leak database contents

Impact If the replication protocol is enabled by using the primary or deprecated master role for a server instance, then the +changelog URL route can be used to read the complete database content including password hashes, and the ids and salts of tokens from devpi-tokens by using a trivially...

sqlparse: TokenList.__init__ materializes O(subtree) value per group, causing CPU DoS before depth/token caps trigger

Summarysqlparse ships hard limits MAXGROUPINGDEPTH=100, MAXGROUPINGTOKENS=10000 intended to bound parsing work on attacker-supplied SQL, but the path that reaches those limits is itself Ondepth per token-group construction. A 1-2 KB SQL payload e.g. SELECT 1 ... with 500-2000 nesting levels, or a...

PYSEC-2026-3697 sqlparse: Quadratic O(n²) DoS in group_comments

Summary A comment-only statement -- c\nn may cause a Denial of Service DoS. Details Location: sqlparse/engine/grouping.py:331-341 groupcomments, invoked first in group at grouping.py:439. Reachable via sqlparse.parse and sqlparse.formatsql, stripcomments=True. A statement made of many single-line...

PYSEC-2026-3699 sqlparse: TokenList.__init__ materializes O(subtree) value per group, causing CPU DoS before depth/token caps trigger

Summary sqlparse ships hard limits MAXGROUPINGDEPTH=100, MAXGROUPINGTOKENS=10000 intended to bound parsing work on attacker-supplied SQL, but the path that reaches those limits is itself Ondepth per token-group construction. A 1-2 KB SQL payload e.g. SELECT 1 ... with 500-2000 nesting levels, or ...

PYSEC-2026-3698 sqlparse: Inefficient Regex Handling of Dollar-Quoted SQL Literals Leads to ReDoS (Denial of Service)

Summary sqlparse contains a Regular Expression Denial of Service ReDoS vulnerability in its dollar-quoted SQL literal lexer. The regex pattern at sqlparse/keywords.py:33 uses a backreference \1 to match closing dollar-quote delimiters, causing On² CPU complexity when processing inputs containing...

PYSEC-2026-3663 GeoLens: Cross-dataset authorization bypass discloses private dataset metadata, schema, sample values, table rows, and raster/vector tile data

Summary Multiple GeoLens read/link endpoints authorized only the resource named in the request URL a map, a VRT, a source dataset, an AI request and failed to re-authorize a second, caller-influenced dataset that the request reached through a relationship, layer reference, mosaic source, or reque...

MobSF's CSRF checks not enforced after Django migration

SummaryDjango's CsrfViewMiddleware exists only in the deprecated MIDDLEWARECLASSES ignored since Django 2.0. The active MIDDLEWARE tuple does not include it. All authenticated web POST endpoints delete scan, upload, download APK, change password, manage users accept requests without CSRF tokens...

GeoLens: Cross-dataset authorization bypass discloses private dataset metadata, schema, sample values, table rows, and raster/vector tile data

SummaryMultiple GeoLens read/link endpoints authorized only the resource named in therequest URL a map, a VRT, a source dataset, an AI request and failed tore-authorize a second, caller-influenced dataset that the request reachedthrough a relationship, layer reference, mosaic source, or request...

MobSF Vulnerable to Zip Bomb Denial of Service via Per-File Size Limit Bypass in ZIP/APK Extraction

SummaryWhen extracting uploaded ZIP/APK files, MobSF checks if individual files exceed ZIPMAXUNCOMPRESSEDFILESIZE 400 MB and logs "Skipping" — but the code lacks a continue statement, so extraction proceeds anyway. The log message is misleading; the file is still written to disk. Verified Impact...

sqlparse: Quadratic O(n²) DoS in group_comments

SummaryA comment-only statement -- c\nn may cause a Denial of Service DoS. DetailsLocation: sqlparse/engine/grouping.py:331-341 groupcomments, invoked first in group at grouping.py:439. Reachable via sqlparse.parse and sqlparse.formatsql, stripcomments=True.A statement made of many single-line...

PYSEC-2026-3662 GeoLens: Cross-dataset authorization bypass discloses private dataset metadata, schema, sample values, table rows, and raster/vector tile data

Summary Multiple GeoLens read/link endpoints authorized only the resource named in the request URL a map, a VRT, a source dataset, an AI request and failed to re-authorize a second, caller-influenced dataset that the request reached through a relationship, layer reference, mosaic source, or reque...

PYSEC-2026-3687 MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)

Summary The default MLflow Tracking Server mlflow server, no authentication, default SQLite backend exposes the model-registry webhooks API unauthenticated, including a synchronous POST /api/2.0/mlflow/webhooks/id/test endpoint that returns the upstream response status and body to the caller. The...

PYSEC-2026-3691 MobSF Vulnerable to Zip Bomb Denial of Service via Per-File Size Limit Bypass in ZIP/APK Extraction

Summary When extracting uploaded ZIP/APK files, MobSF checks if individual files exceed ZIPMAXUNCOMPRESSEDFILESIZE 400 MB and logs "Skipping" — but the code lacks a continue statement, so extraction proceeds anyway. The log message is misleading; the file is still written to disk. Verified Impact...

sqlparse: Inefficient Regex Handling of Dollar-Quoted SQL Literals Leads to ReDoS (Denial of Service)

Summarysqlparse contains a Regular Expression Denial of Service ReDoS vulnerability in its dollar-quoted SQL literal lexer. The regex pattern at sqlparse/keywords.py:33 uses a backreference \1 to match closing dollar-quote delimiters, causing On² CPU complexity when processing inputs containing...

GeoLens: Cross-dataset authorization bypass discloses private dataset metadata, schema, sample values, table rows, and raster/vector tile data

SummaryMultiple GeoLens read/link endpoints authorized only the resource named in therequest URL a map, a VRT, a source dataset, an AI request and failed tore-authorize a second, caller-influenced dataset that the request reachedthrough a relationship, layer reference, mosaic source, or request...

MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)

SummaryThe default MLflow Tracking Server mlflow server, no authentication, default SQLite backend exposes the model-registry webhooks API unauthenticated, including a synchronous POST /api/2.0/mlflow/webhooks/id/test endpoint that returns the upstream response status and body to the caller. The...