CVE-2025-1936
published 2025-03-04CVE-2025-1936: jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but…
PriorityP339high7.3CVSS 3.1
AVNACLPRNUINSUCLILAL
EPSS
0.41%
33.5th percentile
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 136.0-1 (sid) | firefox 136.0-1 (sid) |
| debian | firefox-esr | < firefox 136.0-1 (sid) | firefox 136.0-1 (sid) |
| debian | thunderbird | < firefox 136.0-1 (sid) | firefox 136.0-1 (sid) |
| mozilla | firefox | < 128.8.0 | 128.8.0 |
| mozilla | firefox | < 136.0 | 136.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 136.0+build3-0ubuntu0.20.04.1 | 136.0+build3-0ubuntu0.20.04.1 |
| mozilla | thunderbird | < 128.8.0 | 128.8.0 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1~deb11u1 | 1:128.8.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1~deb12u1 | 1:128.8.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1 | 1:128.8.0esr-1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1 | 1:128.8.0esr-1 |
| mozilla | thunderbird | >= 129.0 < 136.0 | 136.0 |
CVSS provenance
nvdv3.17.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian7.3HIGH
vendor_redhat7.3HIGH
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OSV
firefox vulnerabilities
osv·2025-03-06·CVSS 7.5
CVE-2025-1933 [HIGH] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1933,
CVE-2025-1934, CVE-2025-1935, CVE-2025-1936, CVE-2025-1937, CVE-2025-1942)
It was discovered that Firefox did not properly handle WebTransport
connection, leading to a use-after-free vulnerability. An attacker could
potentially exploit this issue to cause a denial of service.
(CVE-2025-1931)
Ivan Fratric discovered that Firefox did not properly handle XSLT sorting,
leading to a out-of-bounds access vulnerability. An attacker could
potentially exploit this issue to cause a denial of servic
GHSA
GHSA-x4j2-c46q-7jp5: jar: URLs retrieve local file content packaged in a ZIP archive
ghsa_unreviewed·2025-03-04
CVE-2025-1936 [HIGH] CWE-158 GHSA-x4j2-c46q-7jp5: jar: URLs retrieve local file content packaged in a ZIP archive
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability affects Firefox < 136 and Firefox ESR < 128.8.
OSV
CVE-2025-1936: jar: URLs retrieve local file content packaged in a ZIP archive
osv·2025-03-04·CVSS 7.3
CVE-2025-1936 [HIGH] CVE-2025-1936: jar: URLs retrieve local file content packaged in a ZIP archive
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2025-07-22
CVE-2025-4083 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart thunderbird to
make all the necessary changes.
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2025-03-06·CVSS 7.5
CVE-2025-1932 [HIGH] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Several security issues were fixed in Firefox.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code. (CVE-2025-1933,
CVE-2025-1934, CVE-2025-1935, CVE-2025-1936, CVE-2025-1937, CVE-2025-1942)
It was discovered that Firefox did not properly handle WebTransport
connection, leading to a use-after-free vulnerability. An attacker could
potentially exploit this issue to cause a denial of service.
(CVE-2025-1931)
Ivan Fratric discovered that Firefox did not properly handle XSLT sorting,
leading to a out-of-bounds access vulnerability. An attacker
Red Hat
firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents
vendor_redhat·2025-03-04·CVSS 7.3
CVE-2025-1936 [HIGH] CWE-754 firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents
firefox: Adding %00 and a fake extension to a jar: URL changed the interpretation of the contents
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, b
Debian
CVE-2025-1936: firefox - jar: URLs retrieve local file content packaged in a ZIP archive. The null and ev...
vendor_debian·2025·CVSS 7.3
CVE-2025-1936 [HIGH] CVE-2025-1936: firefox - jar: URLs retrieve local file content packaged in a ZIP archive. The null and ev...
jar: URLs retrieve local file content packaged in a ZIP archive. The null and everything after it was ignored when retrieving the content from the archive, but the fake extension after the null was used to determine the type of content. This could have been used to hide code in a web extension disguised as something else like an image. This vulnerability affects Firefox < 136, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.
Scope: local
sid: resolved (fixed in 136.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-18: CVE-2025-1936
vendor_mozilla·CVSS 7.3
CVE-2025-1936 [HIGH] Mozilla Foundation Security Advisory 2025-18: CVE-2025-1936
Mozilla Foundation Security Advisory 2025-18
CVE: CVE-2025-1936
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.8
Mozilla
Mozilla Foundation Security Advisory 2025-16: CVE-2025-1936
vendor_mozilla·CVSS 7.3
CVE-2025-1936 [HIGH] Mozilla Foundation Security Advisory 2025-16: CVE-2025-1936
Mozilla Foundation Security Advisory 2025-16
CVE: CVE-2025-1936
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 128.8
Mozilla
Mozilla Foundation Security Advisory 2025-14: CVE-2025-1936
vendor_mozilla·CVSS 7.3
CVE-2025-1936 [HIGH] Mozilla Foundation Security Advisory 2025-14: CVE-2025-1936
Mozilla Foundation Security Advisory 2025-14
CVE: CVE-2025-1936
Product: Firefox
Impact: high
Fixed in: Firefox 136
Mozilla
Mozilla Foundation Security Advisory 2025-17: CVE-2025-1936
vendor_mozilla·CVSS 7.3
CVE-2025-1936 [HIGH] Mozilla Foundation Security Advisory 2025-17: CVE-2025-1936
Mozilla Foundation Security Advisory 2025-17
CVE: CVE-2025-1936
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 136
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1940027https://www.mozilla.org/security/advisories/mfsa2025-14/https://www.mozilla.org/security/advisories/mfsa2025-16/https://www.mozilla.org/security/advisories/mfsa2025-17/https://www.mozilla.org/security/advisories/mfsa2025-18/https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html
2025-03-04
Published